26 The mixture was heated to 80°C, Table 1 Mutations identified in CF patients from Estonia Mutation Exon No of chromosomes Frequency (%) Method Reference F508 10 31 51.7 HA 6 394delTT 3 8 13.3 HA 7 359insT 3 1 SSCP 16 3659delC 19 1 SSCP 17 E217G 6a 1 DGGE 18 H117C 4 1 SSCP 19 I1005R 17a 1 SSCP 19 R1066H 17b 1 DGGE 20 S1196X 19 1 DGGE 21 S1235R 19 2 DGGE 22 Unidentified 12 Total 60 Table 2 Genotypes of the 30 CF patients from Estonia No of patients Genotype 8 F508/ F508 6 F508/394delTT 1 F508/I1005R 1 F508/359insT 1 F508/3659delC 1 F508/H117C 1 F508/R1066H 1 F508/S1196X 1 394delTT/394delTT 2 S1235R/U* 3 F508/U 1 E217G/U 3 U/U *Unidentified mutation Electronic letter of 4 www.jmedgenet.com cooled slowly to 30°C, and then divided into four sets of 60 µl.

X

ABCC7 p.Arg1066His 10922396:26:301

status: NEW

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ABCC7 p.Arg1066His 10922396:26:558

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62 It diVers from the one found in Germany by one repeat in the IVS8 locus and could have been derived from it by slippage mechanism.31 The mutations R117C and R1066H are obviously recurrent and therefore neither diallelic markers nor microsatellites matched to the corresponding haplotypes from the other populations.

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ABCC7 p.Arg1066His 10922396:62:157

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538 These have been reported in patients with presenting phenotypes ranging from "cystic fibrosis" to oligospermia, but there have been too few cases Table 2 Compound heterozygotes detected Domain and mutation type Genotype Exon 1st IRT 2nd IRT Transmembrane, missense F508/P67L 3 129 34* F508/R117H 4 110 21* F508/R117H 4 84 34 F508/R117H 4 95 39 F508/R117H 4 104 40 F508/R117H 4 146 41 F508/R117H 4 104 48* F508/R117H 4 120 53 F508/R117H 4 111 54 F508/R117H 4 175 72* F508/R117L 4 129 70 F508/L967S 15 122 15 F508/F1052V 17b 189 29 F508/R1066H 17b 94 18 Transmembrane, nonsense F508/R75X 3 86 26 F508/R75X 3 171 27 F508/R851X 14a 112 76 Regulatory, missense F508/F693L 13 109 29 Alternate splice site F508/3849+10KB C→T i19 99 26* F508/3849+10KB C→T i19 112 36* None of these samples had the IVS8-5T variant sequence.

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ABCC7 p.Arg1066His 10970190:538:535

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44 CF GENE MUTATIONS IN ITALY Number of alleles Frequency Cumulative Mutation screened (%) frequency (%) DF508 3442 51.07 51.07 N1303K 3056 4.84 55.91 G542X 3082 4.83 60.75 2183 AA ® G 2596 2.66 63.41 R1162X 2580 2.42 65.83 1717-1 G ® A 2892 2.11 67.94 W1282X 2600 1.23 69.17 R553X 2882 1.15 70.31 T338I 2306 0.69 71.01 R347P 2642 0.61 71.61 711 1 5 G ® A 2454 0.57 72.18 G85E 1980 0.40 72.59 621 1 1 G ® T 2594 0.39 72.97 R334W 2366 0.30 73.27 R352Q 2112 0.24 73.50 S549N 2118 0.24 73.74 R347H 2184 0.18 73.92 L1077P 1840 0.16 74.09 R1158X 1878 0.16 74.25 541del C 1884 0.16 74.40 R1066H 1918 0.16 74.56 E585X 1922 0.16 74.72 Q552X 2172 0.14 74.86 D1152H 1824 0.11 74.97 2790-2 A ® G 1862 0.11 75.07 3132 del TG 1862 0.11 75.18 3667ins 4 1876 0.11 75.29 DI507 1914 0.10 75.39 1898 1 3 A ® G 1920 0.10 75.50 G1244E 1960 0.10 75.60 1784 del G 2052 0.10 75.69 From Rendine et al. (1997).

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ABCC7 p.Arg1066His 11788089:44:599

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40 Mutation Frequency (%) DelF508 54 N1303K 8 G542X 6.25 1717-1G ® A 2.50 R334W 1.75 2183AA ® G 1.50 R117H, L1077P, W1282X 1.25 D110E, R347P, E585X, 2789 ‡ 5G ® A 0.75 R352Q, R553X, R1066H, D1152H, R1158X, 1782delA, 1898 ‡ 1G ® A, 3659delC 0.50 G85E, R117L, G178R, D579G, H609R, Y1032C, V1153E, R1162X, 621 ‡ 1G ® T, 711 ‡ 1G ® T, 1845delAG o 1846delGA, 2143delT 0.25 Table2.Differencesinthethreestrategiesofneonatalscreening(audit1990-1999).

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ABCC7 p.Arg1066His 11883825:40:201

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42 The following mutations have been studied: exon 3: W57G, R74W, R75Q, G85E, 394delTT, 405+ 1G>A; exon 4: E92X, P99L, 441delA, 444delA, 457TAT>G, D110H, R117C, R117H, A120T, 541delC, 544delCA, Q151X, 621+1G>T, 662- 2A>C; exon 7: 1078delT, F331L, R334W, I336K, R347C, R347P, A349V, R352Q, 1221delCT; exon 10: S492F, Q493X, 1609delCA, deltaI507, deltaF508; exon 11: G542X, S549N, G551D, R553X, A559T, R560K, R560T; exon 13: K716X, Q685X, G628R, L719X; exon 17b: H1054D, G1061R, 3320ins5, R1066H, R1066L, R1070Q, 3359delCT, L1077P, H1085R, Y1092X; exon 19: R1162X, 3659delC, 3662delA, 3667del4, 3737delA, I1234V, S1235R, 3849G>A; exon 20: 3860ins31,S1255X,3898insC,3905insT,D1270N, W1282X, Q1291R; and exon 21: N1303H, N1303K, W1316X.

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ABCC7 p.Arg1066His 11933191:42:484

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109 Mutational Arrays, Detection Rates and Methods by Region* Estimated Projected detection of Number of Number of Country/ allele two CFTR mutations chromosomes Region Mutation array detectiona mutationsb includedc (max/min)d Reference Europe Albania ∆F508 (72.4%) C276X (0.7%) 74.5 55.5 4 270/146 CFGAC [1994]; Macek et al. G85E (0.7%) R1070Q (0.7%) [2002] Austria ∆F508 (62.9%) 457TAT→G (1.2%) 76.6 58.7 11 1516/580 Estiville et al. [1997]; Dörk et al. (total) G542X (3.3%) 2183AA→G (0.7%) [2000]; Macek et al. [2002] CFTRdele2,3 (2.1%) N1303K (0.6%) R1162X (1.9%) I148T (0.5%) R553X (1.7%) R117H (0.5%) G551D (1.2%) Austria ∆F508 (74.6%) 2183AA→G (2.4%) 95.3 90.8 8 126 Stuhrmann et al. [1997] (tyrol) R1162X (8.7%) G551D (1.6%) G542X (2.4%) R347P (1.6%) 2789+5G→A (2.4%) Q39X (1.6%) Belarus ∆F508 (61.2%) R553X (0.5%) 75.2 56.6 9 278/188 Dörk et al. [2000]; Macek et al. G542X (4.5%) R334W (0.5%) [2002] CFTRdele2,3 (3.3%) R347P (0.5%) N1303K (3.2%) S549N (0.5%) W1282X (1.0%) Belgium ∆F508 (75.1%) 622-1A→C (0.5%) 100.0 100.0 27 1504/522 Cuppens et al. [1993]; Mercier et G542X (3.5%) G458V (0.5%) al. [1993]; CFGAC [1994]; N1303K (2.7%) 1898+G→C (0.5%) Estivill et al.[1997] R553X (1.7%) G970R (0.5%) 1717-1G→A (1.6%) 4218insT (0.5%) E60X (1.6%) 394delTT (0.5%) W1282X (1.4%) K830X (0.5%) 2183A→G+2184delA (1.2%) E822K (0.5%) W401X (1.0%) 3272-1G→A (0.5%) A455E (1.0%) S1161R (0.5%) 3272-26A→G (1.0%) R1162X (0.5%) S1251N (1.0%) 3750delAG (0.5%) S1235R (0.8%) S1255P (0.5%) ∆I507 (0.6%) Bulgaria ∆F508 (63.6%) R75Q (1.0%) 93.0 86.5 21 948/432 Angelicheva et al. [1997]; (total) N1303K (5.6%) 2183AA→G (0.9%) Estivill et al. [1997]; Macek G542X (3.9%) G1244V+S912L (0.9%) et al. [2002] R347P (2.2%) G85E (0.9%) 1677delTA (2.1%) 2184insA (0.9%) R1070Q (1.8%) L88X+G1069R (0.8%) Q220X (1.2%) 2789+5G→A (0.8%) 3849+10KbC→T (1.1%) G1244E (0.8%) W1282X (1.0%) 1717-1G→A (0.8%) 2176insC (1.0%) Y919C (0.7%) G1069R (1.0%) WORLDWIDEANALYSISOFCFTRMUTATIONS581 Bulgaria 1) DF508 4) 1677delTA - - 6 13 Angelicheva et al. [1997] (ethnic 2) R347P 5) Q493R Turks) 3) G542X 6) L571S - - 1 30 Angelicheva et al. [1997] Bulgaria 1) DF508 (100.0%) (Gypsy) Croatia ∆F508 (64.5%) G551D (1.1%) 72.5 52.6 5 276 Macek et al. [2002] G542X (3.3%) 3849+10KbC→T (0.7%) N1303K (2.9%) Czech ∆F508 (70.0%) 1898+1G→T (2.0%) 89.6 80.3 10 2196/628 CFGAC [1994]; Estiville et al. Republic CFTRdele2,3 (5.5%) 2143delT (1.2%) [1997]; Dörk et al. [2000]; G551D (3.8%) R347P (0.8%) Macek et al. [2002] N1303K (2.9%) 3849+10KbC→T (0.6%) G542X (2.2%) W1282X (0.6%) Denmark ∆F508 (87.5%) G542X (0.7%) 92.3 85.2 6 1888/678 CFGAC [1994]; Schwartz et al. (excluding 394delTT (1.8%) 621+1G→T (0.6%) [1994]; Estiville et al. [1997] Faroe) N1303K (1.1%) 3659delC (0.6%) Estonia ∆F508 (51.7%) R117C (1.7%) 80.2 64.3 10 165/80 Estivill et al. [1997]; Klaassen et 394delTT (13.3%) E217G (1.7%) al. [1998]; Macek et al. S1235R (3.3%) R1066H (1.7%) [2002] 359insT (1.7%) 3659delC (1.7%) I1005R (1.7%) S1169X (1.7%) Finland ∆F508 (46.2%) G542X (1.9%) 78.8 62.1 4 132/52 CFGAC [1994]; Kere et al. 394delTT (28.8%) 3372delA (1.9%) [1994]; Estivill et al. [1997] France ∆F508 (67.7%) 2789+5G→T (0.79%) 79.7 63.6 12 17854/7420 Chevalier-Porst et al. [1994]; (total) G542X (2.94%) 2184delA+2183A→G (0.77%) Estivill et al. [1997]; Claustres et al. [2000]; Guilloud-Bataille N1303K (1.83%) G551D (0.74%) et al. [2000] 1717-1G→A (1.35%) 1078delT (0.63%) W1282X (0.91%) ∆I507 (0.62%) R553X (0.86%) Y122K (0.59%) France ∆F508 (75.8%) R297Q (0.8%) 98.7 97.4 18 599/365 Férec et al. [1992]; Scotet et al. (Brittany) 1078delT (4.0%) R347H (0.8%) [2000] G551D (3.6%) I1234V (0.8%) N1303K (3.0%) R553X (0.8%) R117H (1.7%) 2789+5G→A (0.8%) 3272-26A→G (1.3%) 4005+1G→A (0.7%) G542X (1.1%) 621+1G→T (0.6%) 1717-1G→A (1.0%) ∆I507 (0.6%) G1249R (0.8%) W846X (0.5%) France ∆F508 (70.0%) N1303K (0.8%) 90.4 81.7 16 250 Claustres et al. [1993] (southern) G542X (6.4%) 3737delA (0.8%) 1717-1G→A (1.6%) R1162X (0.8%) L206W (1.2%) Y1092X (0.8%) R334W (1.2%) S945L (0.8%) ∆I507 (1.2%) K710X (0.8%) 2184delA (1.2%) 1078delT (0.8%) R1158X (1.2%) Y122X (0.8%) (Continued) BOBADILLAETAL.

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ABCC7 p.Arg1066His 12007216:109:3104

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46 A series of mutations usually associated with pancreatic sufficiency have been identified and defined as ''mild`` with reference to pancreatic status [Kerem et al., 1989c]: G85E, G91R, R117H, E193K, P205S, R334W, T338I, R347H, R347L, R347P, R352Q, A455E, S492F, S549N, P574H, D579G, 711 þ 5 G > A, C866Y, F1052V, H1054D, R1066H, R1068H, H1085R, D1152H, S1159P, S1251N, F1286S, G1349D, 2789 þ 5 G > A, and 3849 þ 10kb C > T [Dean et al., 1990; Cutting et al., 1990a; Cremonesi et al., 1992; Highsmith et al., 1994].

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ABCC7 p.Arg1066His 12124743:46:326

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64 Spectrum of the CFTR Mutations Identified in the Cohorts from Brittany, Dublin Centre, and Cork Area Nucleotide Amino acid change * change Exon Number Frequency Number Frequency Number Frequency 211delG 2 1 0.1% 310G>T E60X 3 5 0.6% 4 0.3% 347C>A A72D 3 1 0.1% 368G>A W79X 3 1 0.1% 386G>A G85E 3 2 0.3% 3 0.2% 403G>A G91R 3 2 0.3% 482G>A R117H 4 4 0.5% 38 3.0% 4 1.4% 498T>A Y122X 4 1 0.1% 574delA 4 1 0.1% 577G>A G149R 4 1 0.1% 621+1G>T int 4 5 0.6% 21 1.7% 790C>T Q220X 6a 1 0.1% 875+1G>C int 6a 1 0.4% 905delG 6b 1 0.1% 1065C>G F311L 7 2 0.3% 1078delT 7 28 3.6% 1132C>T R334W 7 1 0.1% 1172G>A R347H 7 5 0.6% 1172G>T R347L 7 1 0.1% 1172G>C R347P 7 1 0.1% 1187G>A R352Q 7 3 0.2% 2 0.7% 1208A>G Q359R 7 1 0.1% 1154insTC 7 2 0.2% 1221delCT 7 2 0.3% 1248+1G>A int 7 1 0.1% 1249-27delTA int 7 1 0.4% 1334G>A W401X 8 1 0.1% 1461ins4 9 5 0.4% 1471delA 9 2 0.2% 1607C>T S492F 10 2 0.3% 1609C>T Q493X 10 1 0.1% 1648_1653delATC I507del 10 3 0.4% 10 0.8% 1 0.4% 1652_1655del 3 bp F508del 10 582 74.8% 966 76.5% 226 81.3% 1690G>T V520F 10 4 0.3% 1717-1G>A int 10 8 1.0% 9 0.7% 1756G>T G542X 11 5 0.6% 8 0.6% 1779T>G S549R 11 1 0.1% 1784G>A G551D 11 29 3.7% 82 6.5% 27 9.7% 1789C>G R553G 11 1 0.1% 1789C>T R553X 11 3 0.4% 1 0.1% 1806delA 11 1 0.1% 1811G>A R560K 11 2 0.3% 1811G>C R560T 11 30 2.4% 2 0.7% 1819T>A Y563N 12 1 0.1% 1853C>A P574H 12 1 0.1% 1898+1G>A int 12 1 0.1% 2184delA 13 1 0.1% 1 0.1% 2184insA 13 1 0.1% 2622+1G>A int 13 1 0.1% 2 0.2% 2622+1G>T int 13 1 0.1% 2623-2A>G ** int 13 1 0.1% 2670G>A W846X2 14a 8 1.0% 2752-1G>T int 14a 1 0.1% 2752-26A>G int 14a 2 0.2% 2789+5G>A int 14b 6 0.8% 2966C>T S945L 15 2 0.3% 3007delG 15 4 0.3% 3040G>C G970R 15 1 0.1% 3062C>T S977F 16 1 0.1% 3120+1G>A int 16 1 0.1% 3272-26A>G int 17a 4 0.5% 2 0.2% 2 0.7% 3320dupli(CTATG) 17b 1 0.1% 3329G>A R1066H 17b 1 0.1% 3340C>T R1070W 17b 1 0.1% 3408C>A Y1092X 17b 7 0.9% 3442G>T E1104X 17b 1 0.1% 3446T>G ** M1105R 17b 1 0.1% 3586G>C D1152H 18 1 0.1% 3601-17T>C + 1367delC int 18 + 9 1 0.1% 3616C>T R1162X 19 1 0.1% 2 0.2% 3659delC 19 2 0.2% 3832A>G I1234V 19 2 0.3% 3849+4A>G int 19 1 0.1% 3849+10kbC>T int 19 3 0.2% 3877G>A G1249R 20 1 0.1% 3884G>A S1251N 20 1 0.1% 3898insC 20 1 0.1% 3905insT 20 2 0.3% 3978G>A W1282X 20 3 0.4% 4005+1G>A int 20 6 0.8% 4016insT 21 1 0.1% 4041C>G N1303K 21 11 1.4% 5 0.4% 4136T>C L1335P 22 1 0.1% 1 0.4% 4279insA 23 1 0.1% Unidentified Unidentified - 3 0.4% 41 3.2% 11 4.0% Total 778 100.0% 1262 100.0% 278 100.0% * All nucleotide changes correspond to cDNA numbering.

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ABCC7 p.Arg1066His 12815607:64:1785

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51 Two multiplex reactions were designed for the analysis of 11 mutations: multiplex 1 (M1) analyzed K710X, R1066C/R1066S, 2869 insG, and Q890X polymorphisms; and multiplex 2 (M2) analyzed L206W, 1609delCA, R1066L/R1066H, R709X, and 1811 ϩ 1.6Kb polymorphisms.

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ABCC7 p.Arg1066His 15502086:51:211

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136 Class IV and V mutations reported among the patients with PI included D1152H (n ϭ 2), A455E (n ϭ 2), R1066H (n ϭ 1), S13F (n ϭ 1), and 1898ϩ3AϾG (n ϭ 1).

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ABCC7 p.Arg1066His 15772171:136:113

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47 CFTR gene alterations were first scored by PCR and reverse dot blot (Chehab and Wall, 1992), targeted to the detection of the following mutations: ∆F508, G85E, 541∆C, D110H, R117H, 621+1G→T, 711+5G→A, R334W, R334Q, T338I, 1078∆T, R347H, R352Q, ∆I507, 1609∆CA, E527G, 1717-1G→A, 1717-8G→A, G542X, R347P, S549N, S549R A→C, Q552X, R553X, A559T, D579G, Y577F, E585X, 1898+3A→G, 2183AA→G, R709X, 2789+5G→A, 3132∆TG, 3272-26A→G, L1077P, L1065P, R1070Q, R1066H, M1101K, D1152H, R1158X, R1162X, 3849+10KbC→T, G1244E, W1282R, W1282X, N1303K and 4016∇T.

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ABCC7 p.Arg1066His 16126774:47:552

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101 Mutations Women (987) Men (867) N IVS8-T genotype N IVS8-T genotype ∆F508 16 15(7/9); 1(9/9) 26 15(7/9)*; 11(5/9) N1303K 4 4(7/9) 1 7/7 3849+10KbC→T 1 5/7 1 5/7 G542X 2 7/9 1 7/9† 2183AA→G 2 7/7 4 7/7 R553X 2 7/7 0 - R1162X 2 7/7 6 5(7/7)‡; 1(7/9) D1152H 0 - 3 2(7/7); 7/9† 711+5G→A 0 - 3 7/7 1717-8G→A 0 - 1 5/7 1717-1G→A 1 7/7 0 - Y577F 0 - 1 7/7 R117H 1 7/7 1 7/9* 621+3A→G 1 7/9 0 - W1282X 1 7/7 0 - deltaI1507 1 7/7 0 - T3381 1 7/7 1 7/9 R1066H 0 - 1 7/7§ R334Q 0 - 1 7/9 2789+5G→A 1 7/7 2 7/7‡§ Total 36¶ 53¶ records, all these mutations are normally found in trans with respect of 5T.

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ABCC7 p.Arg1066His 16126774:101:513

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21 EXPERIMENTAL Construction and expression of mutants The cDNAs of wild-type and CL4 mutants (H1054D, G1061R, L1065P, R1066H, Q1071P, L1077P, H1085R and W1098R) were inserted into pcDNA3 vector (Invitrogen, Oakville, ON, Canada) as described previously [2].

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ABCC7 p.Arg1066His 16417523:21:116

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51 Accordingly, HEK-293 cells were transfected with mutants H1054D, G1061R, L1065P, R1066H, Q1071P, L1077P, H1085R or W1098R cDNAs.

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ABCC7 p.Arg1066His 16417523:51:81

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55 In contrast, the amount of mature protein in all the processing mutants except mutant R1066H was less than 5% (Figure 2B).

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ABCC7 p.Arg1066His 16417523:55:86

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56 The amount of mature CFTR in mutant R1066H was 10%.

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ABCC7 p.Arg1066His 16417523:56:36

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57 Expression of mutants H1054D, G1061R, R1066H, Q1071P, L1077P, H1085R and W1098R in the presence of 3 µM CFcor-325, however, induced expression of the 190 kDa mature protein.

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ABCC7 p.Arg1066His 16417523:57:38

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59 The chemical chaperone most efficiently rescued mutants R1066H, Q1071P, H1085R and W1098R as the amount of mature CFTR was approx.

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ABCC7 p.Arg1066His 16417523:59:56

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48 Forty-seven different CFTR mutations/gene alterations were chosen and analysed: ΔF508, G85E, 541delC, D110H, R117H, 621+1G→T, 711+5G→A, R334W, R334Q, T338I, R347H, R347P, R352Q, S466X, ΔI507, E527G, 1717-1G→A, 1717-8G→A, G542X, S549N, S549R A→C, G551D, Q552X, R553X, D579G, 1874insT, E585X, 1898+3A→G, 2183AA→G, 2184delA, R709X, 2789+5G→A, 3132delTG, 3199del6, 3272-26A→G, L1077P, L1065P, R1066H, M1101K, D1152H, R1158X, R1162X, 3849+10KbC→T, G1244E, W1282X, N1303K and 4016insT.

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ABCC7 p.Arg1066His 19897426:48:464

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97 CF mutation General adult population MAR population n=1879 n=236 ΔF508 42.6 45.7 2183AA→G 5.9 5.9 R1162X 5.7 8.2 N1303K 5.4 5.9 G542X 4.2 3.7 D1152H 3.9 5.0 R553X 3.7 3.1 R117H 3.3 1.8 711+5G→A 2.8 4.1 Q552X 2.8 0.4 2789+5G→A 2.2 3.1 1717-1G→A 2.6 2.8 E527G 2.4 - G85E 2.4 0.9 R334Q 0.9 0.4 W1282X 0.7 0.9 R334W 0.6 - 1898+3A→G 0.5 0.4 R1158X 0.4 - R1066H 0.4 0.4 T338I 0.4 1.8 3849+10Kb C→T 0.4 1.3 3272-26 A→G - 0.9 3132delTG - 0.9 3659 del C - 0.4 4016 ins T - 0.4 1717-8G→A - 0.4 R347H - 0.4 ΔI507 - 0.4 R1070Q - 0.4 Other (16) 5.4 - Table 2a List of CFTR compound heterozygotes in the adult general population. Mutation Health status Disorder Gender Age (years) Notes and refs ΔF508/A238V Infertile CBAVD M 36 (A) ΔF508/R352W Infertile CBAVD M 45 (A) R553X/R334Q M 38 ΔF508/R347H M 53 [17] S42F/D372E (1251T→G) M 39 (A) (B) ΔF508/D110H Infertile M 38 ΔF508/L1414S (4373T→C) Infertile CBAVD M 44 (A) (B) ΔF508/V201M, D1270N & R74W Infertile CBAVD M 44 (A) [18,19] 2183AA→G/L206W Infertile CBAVD M 40 (A) 711+5G→A/ L206W Infertile CBAVD M 40 (A) Table 2b List of CFTR compound heterozygotes in the population enrolled for medically assisted reproduction.

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ABCC7 p.Arg1066His 19897426:97:390

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98 Mutation Disorder Gender Age (years) Notes and refs ΔF508/R117H M 47 (C) [20,21] ΔF508/R117H F 36 (C) [20,21] ΔF508/R117H M 43 (C) [20,21] G542X/D1152H M 40 (C) R1162X/2789+5G→A CBAVD M 44 (C) R117H/2789+5G→A CBAVD M 42 (C) N1303K/D110H CBAVD M 32 (C) N1303K/D1152H M 40 (C) 2789+5G→A/R1066H M 40 (C) Abbreviations: CBAVD: Congenital Bilateral Absence of the Vas Deference; M: Male; F: Female.

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ABCC7 p.Arg1066His 19897426:98:324

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105 Among the subjects tested, 9 resulted to be compound heterozygotes: ΔF508/R117H (n=3), G542X/D1152H (n=1), R1162X/2789+5G→A (n=1), R117H/2789 + 5G→A (n = 1), N1303K/D110H (n = 1), N1303K/D1152H (n = 1), 2789 + 5G→A/R1066H (n = 1) (Table 2b).

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ABCC7 p.Arg1066His 19897426:105:242

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58 INNO-LiPA CFTR19 INNO-LiPA CFTR17 INNO-LiPA CFTR Italian regional [delta]F508 621+1G>T 1259insA G542X 3849+10kbC>T 4016insT N1303K 2183AA>G 4382delA W1282X 394delTT 852del22 G551D 2789+5G> A R1162X D579G 1717-1G>A 3659delC G1244E R553X R117H G1349D CFTRdele2,3 (21 kb) R334W I502T [delta]I507 R347P L1065P 711+1G>T G85E R1158X 3272-26A>G 3905insT 1078delT T338I R560T A455E S549R(A>C) 1898+1G>A S1251N 2143delA 711+5G>A 991del5 I148T E60X D1152H 3199del6 3120+1G>A 2184delA 1898+3A>G, R1070Q Q552X Poli-T tract variations R1066H R347H 621+3A>G R334Q E217G Abbreviation: CFTR, cystic fibrosis transmembrane conductance regulator.

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ABCC7 p.Arg1066His 20657600:58:557

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88 Mutation nomenclaturea Alleles (%) T338I (p.Thr338Ile) 26 (65.0) F508del (p.Phe508del) 9 (22.5) N1303K (p.Asn1303Lys) 1 (2.5) 2183AANG (c.2051_2052delAAinsG) 1 (2.5) 621+1GNT (c.489+1GNT) 1 (2.5) exon 2 del (c.54-5811_164+2187del8108ins182) 1 (2.5) R347P (p.Arg347Pro) 1 (2.5) The 3849+10kbCNT (c.3717+12191CNT), G85E (p.Gly85Glu), 2789+5GNA (c.2657+5GNA), W1282X (p.Trp1282X), G1244E (p.Gly1244Glu), 711+5GNA (c.579+5GNA), 711+1GNT (c.579+1GNA), 4016insT (p.Ser1297PhefsX5), G542X (p.Gly542X), 1717-1GNA (c.1585-1GNA), R553X (p.Arg553X), Q552X (p.Gln552X), G551D (p.Gly551Asp), S549R (ANC) (p.Ser549Arg), I507del (p.Ile507del), F508C (p.Phe508Cys), I502T (p.Ile502Thr), 1706del17 (p.Gln525LeufsX37), 1677delTA (p.Tyr515X), R117H (p.Arg117His), D1152H (p.Asp1152His), L1065P (p.Leu1065Pro), R1066H (p.Arg1066His), L1077P (p.Leu1077Pro), 4382delA (p.Glu1418ArgfsX14), R1162X (p.Arg1162X), R1158X (p.Arg1158X), 1259 insA (p.Gln378AlafsX4), 852del22 (p.Gly241GlufsX13), S912X (p.Ser912X), and 991del5bp (p.Asn287LysfsX19) mutations included in the CF panel were not detected in the population tested.

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ABCC7 p.Arg1066His 21429822:88:791

status: NEW

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ABCC7 p.Arg1066His 21429822:88:801

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127 Moreover seven patients belonging from both groups (3 patients T338I/T338I, 2 patients T338I/F508del, 1 patient T338I/ 2183AANG, 1 patient T338I/R1066H), affected by azoospermia with no other CF symptoms, were occasionally identified when they requested CF genetic test for assisted reproduction technologies (ART) (Rosatelli, personal communication).

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ABCC7 p.Arg1066His 21429822:127:145

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129 Allele Allele Allele Allele p.Gly85Glu G85E (0.26) p.Arg117His R117H (0.54) c.489+1 GNT 621+1 GNT (1.3) p.Phe508del F508del (66.31) p.Arg347Pro R347P (0.36) p.lle507del I507del (0.90) p.Gly551Asp G551D (1.93) c.2052delA 2184delA (0.15) c.1585-1 GNA 1717-1 GNA (0.44) p.Gly542X G542X (2.64) c.3528delC 3659delC (0.28) p.Asn1303Lys N1303K (1.27) p.Arg553X R553X (1.21) p.Arg560Thr R560T (0.30) p.Arg1162X R1162X (0.30) c.2657+5 GNA 2789+5 GNA (0.38) c.3717+12191 CNT 3849+10kbCNT (0.85) c.2988+1 GNA 3120+1 GNA (0.86) p.Trp1282X W1282X (2.20) p.Ala455Glu A455E (0.26) c.1766+1 GNA 1898+1 GNA (0.13) c.579+1 GNT 711+1 GNT (0.35) p.Arg334Trp R334W (0.37) c.54-5940 _273+10250del21kb CFTR dele2,3 p.Ser549Asn S549N (0.14) c.1584 GNA 1716 G→A c.2051_2052delAAinsG 2183AANG (0.1) c.3140-26ANG 3272-26ANG c.262_263delTT 394delTT p.Arg1066Cys R1066C (0.03) p.Arg1066His R1066H c.1022_1023insTC 1154insTC c.2989-1 GNA 3121-1 GNA c.(?_2989)_(3139_?

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ABCC7 p.Arg1066His 21514289:129:857

status: NEW

X

ABCC7 p.Arg1066His 21514289:129:868

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31 Mutations and polymorphisms analyzed in the CFTR gene. Position Denaturant gradient Mutation Exon 1 40-90% 125G/Ca,b M1V (A3G at 133) 175insT 182delT Exon 3 10-60% W57G (T3G at 301) 356G/Aa G85E (G3A at 386) Exon 4 20-70% R117H (G3A at 482) 541delC 621ϩ1G3T I148T (T3C at 575) Exon 5 20-70% E193K (G3A at 709) Intron 5 20-70% 711ϩ3A3G Exon 7 20-70% 1078delT R334W (C3T at 1132) T338I (C3T at 1145) R347P (G3C at 1172)b R347H (G3A at 1172) R352Q (G3A at 1187) Exon 10 20-70% M470V (1540A/G)a ⌬F508 (del 3 bp at 1652) Intron 10 10-60% 1717-1G3A Exon 11 10-60% G542X (G3T at 1756) 1784delG R553X (C3T at 1789) Exon 12 10-60% D579G (A3G at 1868) E585X (G3T at 1885) Intron 12 10-60% 1898ϩ3A3G Exon 13 30-80% 2183AA3G E730X (G3T at 2320) L732X (T3G at 2327) 2347delG Exon 14a 10-60% T854T (2694T/G)a V868V (2736G/A)a Intron 14b 30-80% 2789ϩ5G3A Exon 15 20-70% M952I (G3C at 2988)b Exon 17a 20-70% L997F (G3C at 3123)b Exon 17b 20-70% F1052V (T3G at 3286) R1066C (C3T at 3328) R1066H (G3A at 3329) A1067T (G3A at 3331) Exon 18 20-70% D1152H (G3C at 3586)b Exon 19 30-80% R1158X (C3T at 3604) Exon 20 20-70% S1251N (G3A at 3384) W1282X (G3A at 3978) Exon 21 20-70% N1303K (C3G at 4041)b Exon 22 30-80% G1349D (G3A at 4178) 4382delA Exon 24 30-80% Y1424Y (4404C/T)a a Polymorphism.

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ABCC7 p.Arg1066His 9895335:31:1002

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71 Lane 1, F1052V (T3G at 3286)/wt; lane 2, R1066C (C3T at 3328)/wt; lane 3, R1066H (G3A at 3329)/wt; lane 4, wt.

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ABCC7 p.Arg1066His 9895335:71:74

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104 Mutation N alleles c.966T>G(5'flanking) c.234T>A(5'flanking)a c.-8G>C(5'UTR) c.-4G>C(Exon1) c.274-179G>A(Intron3) c.743+40A>G(Intron6) c.744-31TTGA(5_7)(Intron6) c.869+11C>T(Intron7) c.869+88T>A(Intron7) c.1209+43T>G(Intron9) IVS8CA(15-23)(Intron9) TG(10-13)_T(5-9)(Intron9) c.1393-61A>G(Intron10) M470V(Exon11) F508del(Exon11) c.1766+152T>A(Intron13) c.1767-231T>C(Intron13) c.1767-136T>C(Intron13) c.1767-132A>G(Intron13) c.2562T>G(Exon15) c.2604A>G(Exon15) c.2619+86_2619+87del(Intron15) c.2619+106T>A(Intron15) c.2909-92G>A(Intron17) IVS17bCA(11-17)(Intron20) c.3368-140A>C(Intron20) c.3469-65C>A(Intron21) F508del 32 TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- GA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- A5- 55- 55- 55- 66- 66- 66- 66- 66- 66- 66- 66- 66- 66- 55- 55- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TC- TT- TT- TT- TC- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TG- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- T17- 10_9- G- F508del- TA- 13C F508del 29 G23- 10_9- G- F508del- TA- 13C F508del 1 G21- 10_9- G- GG- G-F508del- TA- 13C F508del 1 G17- 10_9- G- F508del- A- G- delTA- 17- C- A N1303K 6 G542X 6 3849+10kbC→T 1 del Ex17a, b, Ex18 1 GG- GG- GG- 23- 10_9- GG-F508- T- TA- 13- C A455E 1 G22- 10_9- G- F508- T- TA- 13- C 621+1G→T 5 G21- 10_9- G- GG- GG- F508C- TA- 13- C 711+1G→T 3 3272-26A→G 2 3659delC 2 R347P 2 G16- 11_7- A- A-F508- TA- 13C del Ex 2, 3 2 del Ex 17a,17b 2 Normal 1 R334W 2 G17- 11_7- A- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA-AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- A-AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- AA- F508- TA- 13C 2183AA→G 2 G16- 10_7- F508- TATA- TATA- TATA- TATA- TATA- TATA- 13C del Ex 2 1 G16- 11_7- F508- 14C 1288insTA 1 G16- 12_7- F508- 13C Normal 1 G16- 12_7- F508- 13C R1162X 1 G17- 10_7- F508- 13C del Ex 2,3 1 G16- 11_7- F508- A17- C del Ex 17a,17b 1 GA- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT- TT-16- 11_7- F508- 14- C G85E 1 G16- 11_7- F508- 15C 1898+1G→A 1 G16- 11_7- F508- G13- C no mut detected 1 GT- TT- T16- 10_7- F508- 13C no mut detected 1 G16- 10_7- F508- 17A W1282X 2 G17- 10_7- F508- 17A W1282X 4 GC- CC- C17- 10_7- F508- delTA- 17- A Q39X 1 I507del 1 3849+10kbC→T 1 R560T 2 1717-1G→A 2 G551D 3 G16- 10_7- F508- delTA- 17- A G551D 2 1154insTC 1 G16- 10_7- F508- delTA- 17- 1717- 17A 1717-1G→A 1 2789+5G→A 1 GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- G17- 10_7- F508- AdelTA- A R1066C 1 GG- 17- 10_7- F508- delTA- A R1066H 1 GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- GG- G17- 9_7- F508- delTAC R553X 3 GG- GG- CA- AA- AA- AA- A17- 12_7- F508- delTA- 11- C 3121-1G→A 1 C17- 12_7- F508- delTA- 11- C R334W 1 G17- 12_7- F508- TA- 13- C (TG)13T5b 1 G17- 13_5- F508- delTA- 13- C CC- CC- CC- CC- CC- CC- CC- CC- CC- CC- CC- CC- CC- CC- CC- CC- CC- R117H 1 CA- 6C- TT- 15- 12_5- AG- F508- T- TT- AT- ATA- TG- 13A- C R117H1 1 CA- 6C- TT- 16- 12_5- AG- F508- T- TT- AT- ATA- TG- 13A- C 1717-1G→A 1 R117Hb 1 GA- 6C- TT- 16- 10_7- AA- F508- A- TC- AG- AdelTA- TG- 13A- C 144c a Variation found in a sample where the haplotype could not be predicted.

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ABCC7 p.Arg1066His 22137130:104:2965

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76 There have been 3 published cases of de novo mutations in CFTR gene to date: c.3197G>A (R1066H),2 c.2551C>T (R851X),3 and c.3194T>G (L1065R).4 All of them are point mutations situated at the mutational hot spot regions.

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ABCC7 p.Arg1066His 21663921:76:88

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99 Detection of a de novo R1066H mutation in an Italian patient affected by cystic fibrosis.

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ABCC7 p.Arg1066His 21663921:99:23

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59 In order to evaluate the relationship between the presence of CFTR mutation and sweat chloride concentration, we focused our attention on the 91 individuals (11.8%) in whom borderline sweat chloride values (31-59 mEq/l) were recorded (mean sweat electrolyte value was 40.0 mEq/l): 25 refused to be referred to the local Table 2 Demographic and clinical features of subjects with positive DNA analysis Patient Initials Gender Age at test years/ months Sweat chloride mEq/l Clinical indication DNA results IRT Right arm Left arm 1 CA M 49y5m 34 34 CBAVD G542X/5T-TG12 ND 2 SA M 45y2m 45 43 Pancreatitis F508del/R117H-7T ND 3 PD F 43y7m 33 38 Recurrent bronchitis F508del/5T-TG12 ND 4 CA M 36y1m 31 29 CBAVD R117H-7T/R117C-7T ND 5 SC M 36y1m 33 40 Pneumonia F508del/D1152H ND 6 MG M 25Y5m 41 45 CBAVD Q552X/D1152H NEG 7 SG M 18y5m 49 54 Pancreatitis 4016insT/dupl.prom.-3 ND 8 LS F 10y4m 41 38 Pancreatitis D1152H/L997F NEG 9 CM M 8y3m 30 31 Pneumonia F1052V/A120T NEG 10 PT M 7y3m 41 39 Positive screening F508del/Y1032C POS 11 ME F 7y1m 44 44 Positive screening 2789+5GNA/5T-TG12 POS 12 PM F 6y4m 35 36 Positive screening 2183AANG/5T-TG12 POS 13 BM F 6y3m 36 39 Positive screening F508del/5T-TG12 POS 14 CD M 5y8m 40 41 Chronic bronchitis 5T-TG12/5T-TG12 NEG 15 CG F 4y5m 33 37 Recurrent bronchitis R553X/L997F POS 16 CS F 3y8m 53 58 Family history G542X/D614G POS 17 VA M 4y2m 49 43 Pneumonia E831X/5T-TG12 ND 18 SC M 3y4m 39 39 Positive screening R352Q/G213E POS 19 CC F 2y3m 31 31 Positive screening F508del/5T-TG12 POS 20 CA F 2y5m 51 52 Recurrent bronchitis E831X/5T-TG12 ND 21 MR F 3y+7m 29 31 Family history G542X/5T-TG12 POS 22 CM F 2y3m 60 58 Pneumonia T338I/L997F POS 23 LM F 2y1m 50 52 Positive screening F508del/E1473X POS 24 CGE F 0y8m 46 47 Positive screening E92K/5T-TG13 POS 25 NF M 0y7m 32 30 Positive screening F508del/P5L POS 26 RG M 0y7m 45 40 Positive screening N1303K/P5L POS 27 PE M 47y4m 60 58 Nasal polyposis R1066H/UN ND 28 LS M 39y9m 39 38 Azoospermy N1303K/UN ND 29 TM M 38y4m 40 45 Azoospermy N1303K/UN ND 30 DF M 34y2m 52 58 Bronchiectasis 3849+10 kbCNT/UN ND 31 TV F 30y5m 35 34 Recurrent bronchitis L997F/UN ND 32 FA F 18y7m 53 49 Family history Del es.2/UN NEG 33 DG M 17y8m 43 47 Recurrent bronchitis 5T-TG12/UN NEG 34 LN F 13y7m 54 53 Nasal poliposis, malnutrition R74W-V855I/UN NEG 35 FKT M 15y4m 54 53 Chronic bronchitis R352Q/UN NEG 36 BM M 10y9m 48 51 Chronic bronchitis T1263I/UN NEG 37 SV F 11y1m 60 58 Chronic bronchitis R347H/UN NEG 38 CV F 10y10m 38 39 Recurrent bronchitis 5T-TG12/UN NEG 39 BF F 9y10m 37 38 Chronic bronchitis L997F/UN NEG 40 CA M 8y2m 33 32 Pneumonia F508del/UN NEG 41 RX F 8y7m 29 31 Chronic bronchitis V920L/UN NEG 42 MG F 4y3m 51 51 Positive screening F508del/UN POS Sweat chloride concentration and mutations/variants detected are also reported.

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ABCC7 p.Arg1066His 19318035:59:1933

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57 In order to evaluate the relationship between the presence of CFTR mutation and sweat chloride concentration, we focused our attention on the 91 individuals (11.8%) in whom borderline sweat chloride values (31-59 mEq/l) were recorded (mean sweat electrolyte value was 40.0 mEq/l): 25 refused to be referred to the local Table 2 Demographic and clinical features of subjects with positive DNA analysis Patient Initials Gender Age at test years/ months Sweat chloride mEq/l Clinical indication DNA results IRT Right arm Left arm 1 CA M 49y5m 34 34 CBAVD G542X/5T-TG12 ND 2 SA M 45y2m 45 43 Pancreatitis F508del/R117H-7T ND 3 PD F 43y7m 33 38 Recurrent bronchitis F508del/5T-TG12 ND 4 CA M 36y1m 31 29 CBAVD R117H-7T/R117C-7T ND 5 SC M 36y1m 33 40 Pneumonia F508del/D1152H ND 6 MG M 25Y5m 41 45 CBAVD Q552X/D1152H NEG 7 SG M 18y5m 49 54 Pancreatitis 4016insT/dupl.prom.-3 ND 8 LS F 10y4m 41 38 Pancreatitis D1152H/L997F NEG 9 CM M 8y3m 30 31 Pneumonia F1052V/A120T NEG 10 PT M 7y3m 41 39 Positive screening F508del/Y1032C POS 11 ME F 7y1m 44 44 Positive screening 2789+5GNA/5T-TG12 POS 12 PM F 6y4m 35 36 Positive screening 2183AANG/5T-TG12 POS 13 BM F 6y3m 36 39 Positive screening F508del/5T-TG12 POS 14 CD M 5y8m 40 41 Chronic bronchitis 5T-TG12/5T-TG12 NEG 15 CG F 4y5m 33 37 Recurrent bronchitis R553X/L997F POS 16 CS F 3y8m 53 58 Family history G542X/D614G POS 17 VA M 4y2m 49 43 Pneumonia E831X/5T-TG12 ND 18 SC M 3y4m 39 39 Positive screening R352Q/G213E POS 19 CC F 2y3m 31 31 Positive screening F508del/5T-TG12 POS 20 CA F 2y5m 51 52 Recurrent bronchitis E831X/5T-TG12 ND 21 MR F 3y+7m 29 31 Family history G542X/5T-TG12 POS 22 CM F 2y3m 60 58 Pneumonia T338I/L997F POS 23 LM F 2y1m 50 52 Positive screening F508del/E1473X POS 24 CGE F 0y8m 46 47 Positive screening E92K/5T-TG13 POS 25 NF M 0y7m 32 30 Positive screening F508del/P5L POS 26 RG M 0y7m 45 40 Positive screening N1303K/P5L POS 27 PE M 47y4m 60 58 Nasal polyposis R1066H/UN ND 28 LS M 39y9m 39 38 Azoospermy N1303K/UN ND 29 TM M 38y4m 40 45 Azoospermy N1303K/UN ND 30 DF M 34y2m 52 58 Bronchiectasis 3849+10 kbCNT/UN ND 31 TV F 30y5m 35 34 Recurrent bronchitis L997F/UN ND 32 FA F 18y7m 53 49 Family history Del es.2/UN NEG 33 DG M 17y8m 43 47 Recurrent bronchitis 5T-TG12/UN NEG 34 LN F 13y7m 54 53 Nasal poliposis, malnutrition R74W-V855I/UN NEG 35 FKT M 15y4m 54 53 Chronic bronchitis R352Q/UN NEG 36 BM M 10y9m 48 51 Chronic bronchitis T1263I/UN NEG 37 SV F 11y1m 60 58 Chronic bronchitis R347H/UN NEG 38 CV F 10y10m 38 39 Recurrent bronchitis 5T-TG12/UN NEG 39 BF F 9y10m 37 38 Chronic bronchitis L997F/UN NEG 40 CA M 8y2m 33 32 Pneumonia F508del/UN NEG 41 RX F 8y7m 29 31 Chronic bronchitis V920L/UN NEG 42 MG F 4y3m 51 51 Positive screening F508del/UN POS Sweat chloride concentration and mutations/variants detected are also reported.

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ABCC7 p.Arg1066His 19318035:57:1933

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51 Primers amplifying the regions of interest were designed with PrimerQuestSM from Table 1 Genotypes of CF patients W846X2 1078delT G551D Mutation in trans Number Mutation in trans Number Mutation in trans Number ΔF508 6 ΔF508 21 ΔF508 18 R117C 1 1078delTa 2 E60K 1 ΔI507 1 4005+1GNA 2 W79X 1 Y563N 1 L610S 1 C225X 1 1078delTb 1 W846X2 b 1 F311L 1 621+1GNT 1 R1066H 1 R347H 1 2789+5GNA 1 1221delCT 1 G542X 1 3849+4ANG 1 1717-1GNA 1 G551D 1 3659delC 1 R553G 1 S942F 1 Y1092X 1 621+1GNT 1 2789+5GNA 1 4006-1GNA 1 Unidentified 1 Total 13 Total 31 Total 32 a One particular case: in this individual, the two chromosomes 7 are identical by descent.

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ABCC7 p.Arg1066His 17825628:51:377

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80 Thereafter, the longitudinal patterns of WCXR and BCXR for the two patients with novel mutations (i.e., G1047R and 1525-2AYG) were superimposed on the Table 1 Summary of patient characteristics Characteristics F508del homozygote group (n =38) Pancreatic sufficiency groupa (n =19) Sex Male 25 8 Female 13 11 Center Madison 21 12 Milwaukee 17 7 Group Screened 38 3 Control 0 14 Other 0 2 Meconium ileus Yes 6 0 No 32 19 Mean age at diagnosis (weeks)TS.D. 7.15T2.4 193.1T192 Mean sweat Cl mEq/lTS.D.

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ABCC7 p.Arg1066His 16275171:80:369

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81 101.0T9.5 83.5T21.2 CXR scores at diagnosis WCXR 2.48T32b 4.68T71 BCXR 21.9T0.3 21.1T.48 Pulmonary function at 8 years FEV1 (%)c 97T4 104T2 FVC (%)c 103T3 103T2 FEV1/FVC% 0.92T0.03 0.98T.01 FEF25 - 75% 99T11 104T5 a Mild pancreatic phenotype mutations include: R117H occurring with F508del (n =5) and G542X (n =1); R117C with F508del (n =2); R347P with F508del (n =1), R1066H (n =1) and 2184insA (n À1), 2789+5G>A with F508del (n =3); 3272À26A>G with F508del (n =1); 3849+10kbC>T with F508del (n =1); L138ins with 3272À26A>G (n =1); R352Q with F508del (n =1); and 1336K with F508del (n =1).

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ABCC7 p.Arg1066His 16275171:81:369

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53 Table 1. Continued CFTR location Amino acid change Nucleotide change 141 IVS 16 Splicing defect 3120 ϩ 1GϾA 142 IVS 16 Splicing defect 3121 - 2AϾG 143 IVS 16 Splicing defect 3121 - 2AϾT 144 E 17a Frameshift 3132delTG 145 E 17a I1005R 3146TϾG 146 E 17a Frameshift 3171delC 147 E 17a Frameshift 3171insC 148 E 17a del V1022 and I1023 3199del6 149 E 17a Splicing defect 3271delGG 150 IVS 17a Possible splicing defect 3272 - 26AϾG 151 E 17b G1061R 3313GϾC 152 E 17b R1066C 3328CϾT 153 E 17b R1066S 3328CϾA 154 E 17b R1066H 3329GϾA 155 E 17b R1066L 3329GϾT 156 E 17b G1069R 3337GϾA 157 E 17b R1070Q 3341GϾA 158 E 17b R1070P 3341GϾC 159 E 17b L1077P 3362TϾC 160 E 17b W1089X 3398GϾA 161 E 17b Y1092X (TAA) 3408CϾA 162 E 17b Y1092X (TAG) 3408CϾG 163 E 17b L1093P 3410TϾC 164 E 17b W1098R 3424TϾC 165 E 17b Q1100P 3431AϾC 166 E 17b M1101K 3434TϾA 167 E 17b M1101R 3434TϾG 168 IVS 17b 3500 - 2AϾT 3500 - 2AϾT 169 IVS 17b Splicing defect 3500 - 2AϾG 170 E 18 D1152H 3586GϾC 171 E 19 R1158X 3604CϾT 172 E 19 R1162X 3616CϾT 173 E 19 Frameshift 3659delC 174 E 19 S1196X 3719CϾG 175 E 19 S1196T 3719TϾC 176 E 19 Frameshift and K1200E 3732delA and 3730AϾG 177 E 19 Frameshift 3791delC 178 E 19 Frameshift 3821delT 179 E 19 S1235R 3837TϾG 180 E 19 Q1238X 3844CϾT 181 IVS 19 Possible splicing defect 3849 ϩ 4AϾG 182 IVS 19 Splicing defect 3849 ϩ 10 kb CϾT 183 IVS 19 Splicing defect 3850 - 1GϾA 184 E 20 G1244E 3863GϾA 185 E 20 G1244V 3863GϾT 186 E 20 Frameshift 3876delA 187 E 20 G1249E 3878GϾA 188 E 20 S1251N 3884GϾA 189 E 20 T1252P 3886AϾC 190 E 20 S1255X 3896CϾA and 3739AϾG in E19 191 E 20 S1255L 3896CϾT 192 E 20 Frameshift 3905insT 193 E 20 D1270N 3940GϾA 194 E 20 W1282R 3976TϾC 195 E 20 W1282X 3978GϾA 196 E 20 W1282C 3978GϾT 197 E 20 R1283M 3980GϾT 198 E 20 R1283K 3980GϾA 199 IVS 20 Splicing defect 4005 ϩ 1GϾA 200 E 21 Frameshift 4010del4 201 E 21 Frameshift 4016insT 202 E 22 Inframe del E21 del E21 203 E 21 N1303K 4041CϾG 204 E 24 Frameshift 4382delA Genomic and Synthetic Template Samples Where possible, native genomic DNA was collected.

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ABCC7 p.Arg1066His 16049310:53:566

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98 Spectrum of CFTR Sequence Variants in 257 Hispanic Patients Who Underwent Diagnostic DNA Testing for CF Mutations in 257 patients Allele counts of each mutation % of variant alleles (183) % of all alleles tested (514) ACMG/ACOG recommended 25 mutation panel* DeltaF508 53 28.96 10.31 G542X 7 3.83 1.36 R334W 2 1.09 0.39 R553X 2 1.09 0.39 DeltaI507 1 0.55 0.19 1717 - 1 GϾA 1 0.55 0.19 3120 ϩ 1 GϾA 1 0.55 0.19 7 different mutations 67 36.61 13.04 All mutations included ACMG/ACOG 1248 ϩ 1 GϾA 1 0.55 0.19 1249 - 29delAT 1 0.55 0.19 1288insTA1288insTA 1 0.55 0.19 1341 ϩ 80 GϾA1341 ϩ 80 GϾA 1 0.55 0.19 1429del71429del7 1 0.55 0.19 1525 - 42 GϾA1525 - 42 GϾA 1 0.55 0.19 1717 - 1 GϾA 1 0.55 0.19 1717 - 8 GϾA 2 1.09 0.39 1811 ϩ 1 GϾA1811 ϩ 1 GϾA 1 0.55 0.19 2055del9-ϾA 3 1.64 0.58 2105-2117del13insAGAAA 1 0.55 0.19 2215insG 1 0.55 0.19 2585delT2585delT 1 0.55 0.19 2752 - 6 TϾC 1 0.55 0.19 296 ϩ 28 AϾG 1 0.55 0.19 3120 ϩ 1 GϾ A 1 0.55 0.19 3271 ϩ 8 AϾG3271 ϩ 8 AϾG 1 0.55 0.19 3271delGG 1 0.55 0.19 3272 - 26 AϾG 2 1.09 0.39 3876delA 2 1.09 0.39 4016insT 1 0.55 0.19 406 - 1 GϾA 6 3.28 1.17 406 - 6 TϾC 1 0.55 0.19 4374 ϩ 13 A ϾG 1 0.55 0.19 663delT 1 0.55 0.19 874insTACA874insTACA 1 0.55 0.19 A1009T 2 1.09 0.39 A559T 1 0.55 0.19 D1152H 1 0.55 0.19 D1270N 3 1.64 0.58 D1445N 2 1.09 0.39 D836Y 1 0.55 0.19 DeltaF311 1 0.55 0.19 DeltaF508 53 28.96 10.31 DeltaI507 1 0.55 0.19 E116K 2 1.09 0.39 E585X 1 0.55 0.19 E588VE588V 2 1.09 0.39 E831X 1 0.55 0.19 F311L 1 0.55 0.19 F693L 1 0.55 0.19 G1244E 1 0.55 0.19 G542X 7 3.83 1.36 G576A 1 0.55 0.19 H199Y 3 1.64 0.58 I1027T 3 1.64 0.58 I285FI285F 1 0.55 0.19 L206W 3 1.64 0.58 L320V 1 0.55 0.19 L967S 1 0.55 0.19 L997F 3 1.64 0.58 P1372LP1372L 1 0.55 0.19 P205S 1 0.55 0.19 P439SP439S 1 0.55 0.19 Q1313X 1 0.55 0.19 Q890X 2 1.09 0.39 Q98R 1 0.55 0.19 R1066C 1 0.55 0.19 R1066H 1 0.55 0.19 (Table continues) missense variant, I1027T (3212TϾC), in exon 17a.25 Family studies have not been performed to identify which allele carries two mutations.

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ABCC7 p.Arg1066His 15858154:98:2009

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186 Table 3. Continued CFTR mutations Alleles Relative mutation frequency (%) (of 317) G567A 1 Ͻ1 S573C 1 Ͻ1 E585X 1 Ͻ1 T604S 1 Ͻ1 F693L 1 Ͻ1 V754 mol/L 1 Ͻ1 2108delA 1 Ͻ1 2184delA 1 Ͻ1 2215insG 1 Ͻ1 2585delT 1 Ͻ1 2752 - 6TϾC 1 Ͻ1 E831X 1 Ͻ1 D836Y 1 Ͻ1 Y913X 1 Ͻ1 S945L 1 Ͻ1 L967S 1 Ͻ1 3171delC 1 Ͻ1 3199del6 1 Ͻ1 3271 ϩ 8AϾG 1 Ͻ1 R1066H 1 Ͻ1 R1070W 1 Ͻ1 Y1092X 1 Ͻ1 W1098C 1 Ͻ1 3500 - 2AϾT 1 Ͻ1 4016insT 1 Ͻ1 4374 ϩ 13AϾG 1 Ͻ1 D1152H 1 Ͻ1 R1158X 1 Ͻ1 R1162X 1 Ͻ1 W1282X 1 Ͻ1 N1303K 1 Ͻ1 Q1313X 1 Ͻ1 P1372L 1 Ͻ1 R1438W 1 Ͻ1 Total 317 100 Table 3.

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ABCC7 p.Arg1066His 15858154:186:459

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105 d G149R, S489X, S492F, S549R, 1898+1G>A, 2622+1G>A, G970R, R1066H, W1204X, 3850-1G>A, Q1313X.

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ABCC7 p.Arg1066His 10923036:105:59

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152 Twenty-four non F508del mutations were found associated with the 9T allele: 394delTT, L90S, D110H, R117G, 621+1G>T, V232D, A455E, G542X, R851L, T908N, 2789+5G>A, 2896insAG, H939R, 3007delG, I980K, I1027T, R1066H, A1067T, D1154G, 3737delA, R74W+D1270N, N1303I, N1303K, D1377H.

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ABCC7 p.Arg1066His 10923036:152:205

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171 CFTR Mutation Genotypes Identified Both in Cystic Fibrosis (CF) and in Congenital Bilateral Absence of the Vas Deferens (CBAVD) CF CBAVD F508del/5T 3 143 F508del/2789+5G>A 53 1 F508del/3272-26A>G 17 4 F508del/R117H* 10 39 F508del/R117C 2 2 F508del/L206W 12 4 F508del/R347H 10 5 F508del/R347L 1 1 F508del/D443Y 1 5 F508del/Y569C 1 1 F508del/P574H 3 1 F508del/G628R(G>A) 2 1 F508del/V920M 1 1 F508del/R1070W 2 3 F508del/D1152H 6 8 F508del/S1235R 3 1 F508del/T1246I 1 1 F508del/D1270N+R74W 2 3 F508delN1303I 1 1 3659delC/R347H 1 1 G542X/T338I 2 2 R347H/R1066H 1 1 *The only case with CF whose alleles at IVS8(T)n were reported had mutation R117H associated with a 5T allele.

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ABCC7 p.Arg1066His 10923036:171:550

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93 Characteristics of 15 Amino Acid Variants/Mutants in the CFTR Gene Detected in 21 Patients With Asthma Other Evolutive Conservative Other mutations Mutation1 Reference2 Exon Domain3 Patients4 phenotypes5 conservation6 change7 at same position R74W Claustres et al., 1993 3 IC1 1 CF-PS/CBAVD b, m, r, s NC - R75Q Zielenski et al., 1991 3 IC2 4 CF-PS/DB/CBAVD/ b, d, m, r, s, x NC R75X (CF) CF Parents R75L (CBAVD) I148T Bozon et al., 1994 4 IC2 1 CF-PS b, d, m, r, s, x NC I148N (CF) A534Q This report 11 NBF1 1 - b, m NC A534E (CF) G576A Fanen et al., 1992 12 NBF1 3 CF-PS/CBAVD b, m, r, s NC G576X (CF) T582R Casals et al., 1997 12 NBF1 1 CF-PS b, d, m, r, s, x NC T582I (CF) R668C Fanen et al., 1992 13 R 5 DB/CF-PS/CBAVD/ b, d, m, r, s, x NC - CF Parents V855I This report 14a IC6 1 - b, r, s C - T896I This report 15 EC4 1 - b, d, m, r, s NC - L997F Fanen et al., 1992 17a TM9 3 DB/CF-PS/CBAVD/ b, d, m, r, s, x C - non-CF M1028R This report 17a TM10 1 - d NC M1028I (CF) T2066C Fanen et al., 1992 17b IC8 1 DB/CF-PI b, d, m, r, s, x NC R1066S (CF) R1066L (CF) R1066H (CF/CBAVD) T1142I This report 18 TM12 1 - b, d, m, r, s, x NC - R1162L Fanen et al., 1992 19 IC9 1 non-CF b, d, m, r, s, x NC R1162X (CF) T1220I Ghanem et al., 1994 19 NBF2 1 DB/non-CF b, d NC - 1 Mutation name according to the Cystic Fibrosis Genetic Analysis Consortium.

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ABCC7 p.Arg1066His 10571949:93:1065

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246 Mutations in TMD2 cluster in ␣-helix a loop between predicted ␣-helices 10 and 11 and include R1030E, R1066H, R1066C, R1066L, and R1070Q (100).

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ABCC7 p.Arg1066His 9674722:246:116

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63 Summary of literaturewhich showed clinical features with mutation R347H Authors Sex Mutations Respiratory symptoms Other symptoms Pancreaticfunction Hqo [present repoctl Kosztolanyi(5) Mills (9) Yilmaz (a) Yilmaz (a) Mercer (4) Mercier (4) Chillon (3) Culard (12) Osbome (2) Cremonesi (1) 2 women (twins) Woman NS NS NS Mall Mall 2 NS 2 men Mall NS AF5081R347Hf W79A AF508/R347H AF508/R347H R347H/R347H R347HIR347H R347H/R1066H R347H/unidentified R347H/unidentiRed AF5081R347H AF508/R347H AF508/R347H Severe Mild ABPAa Severe Mild Absent Absent NS Absent Some Mild lnsufficent NS Mildly insufficient - - Sufficient - Insufficient CEAVD Sufficient CEAVD Sufficient CEAVD Sufficient CEAVD Mildly insufficient - sufficient - - NSNS, not stated.

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ABCC7 p.Arg1066His 9550362:63:421

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22 The substitution of another positively charged histidine for arginine, R1066H, however, was found in both pancreatic sufficient and insufficient patients.'

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ABCC7 p.Arg1066His 9475107:22:71

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66 MIN-HUI LIANG LEE-JUN C WONG Molecular Genetics Laboratory, Department of Pathology and Laboratory Medicine, Children 's Hospital Los Angeles, 4650 Sunset Boulevard, Mail Stop 103, Los Angeles, CA 90027, USA DEBORAH KLEIN BERTRAND SHAPIRO Department ofMedicine, USC University Hospital, Ambulatory Health Centre, 1st Floor, 1355 San Pablo Street, Los Angeles, CA 90033, USA C MICHAEL BOWMAN EVELYN HSU LEE-JUN C WONG Institute for Molecular and Human Genetics, Georgetown University Medical Center, 3800 Reservoir Road NW, Rm M4000, Washington DC 20007, USA 1 Cremonesi L, Cainarca S, Rossi A, Padoan R, Ferrari M. Detection of a de novo R1066H mutation in an Italian patient affected by cystic fibrosis.

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ABCC7 p.Arg1066His 9475107:66:638

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67 Detection of a de novo R1066H mutation in an Italian patient affected by cystic fibrosis.

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ABCC7 p.Arg1066His 9475107:67:23

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97 The R1066C mutant displayed longer closed times between bursts of activity whereas the R1066H mutant increased the P0.

X

ABCC7 p.Arg1066His 9511929:97:87

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88 Two other changes have been described in the same codon: R1066H, G→A at nucleotide 3329 (Férec et al., 1992); and R1066L, G→T at nucleotide 3329 (Mercier et al., 1993).

X

ABCC7 p.Arg1066His 9375855:88:57

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91 Férec et al. (1992) described a R1066H/ 1078delT patient with PI.

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ABCC7 p.Arg1066His 9375855:91:37

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93 Brancolini et al. (1995) found three heterozygous patients: R1066H/1717-1G→A, R1066H/ G542X and R1066C/∆F508 all PS.

X

ABCC7 p.Arg1066His 9375855:93:60

status: NEW

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ABCC7 p.Arg1066His 9375855:93:85

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94 Finally, Mercier et al. (1995) reported the R1066H mutation associated with male infertility.

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ABCC7 p.Arg1066His 9375855:94:44

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96 In the case of mutations at codon 1066, it is now clear that mutation R1066C is a severe CF mutation, but further patients with mutations R1066H and R1066L should be analyzed before conclusions could be made about the severity of mutations at codon 1066.

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ABCC7 p.Arg1066His 9375855:96:138

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16 Examination of the distribution of CF-associated missense mutations shows that the fourth intracellular loop (ICL4) which lies between M10 and M11 is another region that contains many missense mutations: at least 19 CF-associated missense mutations have been discovered in this loop (Fig. 1) (15-20).2 Interestingly, one residue within ICL4, R1066, has been reported to have four separate CF-associated mutations: R1066C, R1066H, R1066L, and R1066S.

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ABCC7 p.Arg1066His 8702904:16:422

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84 In Fig. 2 the processing of ⌬F508 and the milder CF-associated mutant, P574H (10), are provided for reference.

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ABCC7 p.Arg1066His 8702904:84:134

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85 Whole Cell Function of ICL4 Mutants-To evaluate the effect of ICL4 mutations on Cl- channel activity, we selected the mutants R1066C, R1066H, R1066L, A1067T, and F1052V for study.

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ABCC7 p.Arg1066His 8702904:85:134

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95 We found that cells expressing all of the ICL4 mutants (F1052V, R1066C, R1066H, R1066L, and A1067T) generated cAMP-stimulated Cl- selective currents that showed time-and voltage-independent behavior identical to that of wild-type CFTR (data not shown).

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ABCC7 p.Arg1066His 8702904:95:72

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103 Mutations did not alter single-channel conductance: wild-type, 8.9 Ϯ 0.3 pS; F1052V, 9.6 Ϯ 0.2 pS; R1066C, 8.9 Ϯ 0.4 pS; R1066H, 8.5 Ϯ 0.7; R1066C, 8.6 Ϯ 0.3; and A1067T, 9.2 Ϯ 0.2 pS.

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ABCC7 p.Arg1066His 8702904:103:139

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114 The decrease in Po of R1066C was not due to a decrease in burst duration, but was instead due to an increased long closed time between bursts of activity (Figs. 3 and 5C).

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ABCC7 p.Arg1066His 8702904:114:50

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115 In contrast to the cysteine mutation, mutation of Arg-1066 to histidine did not significantly alter any of the kinetics and mutation to leucine produced a small decrease in burst duration and increase in fast closed time.

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ABCC7 p.Arg1066His 8702904:115:50

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156 Data are mean Ϯ S.E. of (6/5) measurements for Po and burst duration, respectively: wild-type (19/18), F1052V (6/5) R1066C (3/3), R1066H (6/7), R1066L (12/5), and A1067T (9/3).

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ABCC7 p.Arg1066His 8702904:156:136

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181 For example, the mutant F1052V was processed normally but had dramatically altered function, whereas the R1066H mutation had a dramatic effect on processing but little discernible effect on function.

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ABCC7 p.Arg1066His 8702904:181:105

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222 For example, H1085R is misprocessed like #2c;F508, yet it is reported to occur in a patient with a pancreatic sufficient phenotype.

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ABCC7 p.Arg1066His 8702904:222:46

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223 Conversely, our data with the mutants R1066L, R1066H, and A1067T are similar to that obtained with the "mild" mutants A455E and P574H (10) in that they retained partial processing and function.

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ABCC7 p.Arg1066His 8702904:223:46

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15 Examination of the distribution of CF-associated missense mutations shows that the fourth intracellular loop (ICL4) which lies between M10 and M11 is another region that contains many missense mutations: at least 19 CF-associated missense mutations have been discovered in this loop (Fig. 1) (15-20).2 Interestingly, one residue within ICL4, R1066, has been reported to have four separate CF-associated mutations: R1066C, R1066H, R1066L, and R1066S.

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ABCC7 p.Arg1066His 8702904:15:422

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94 We found that cells expressing all of the ICL4 mutants (F1052V, R1066C, R1066H, R1066L, and A1067T) generated cAMP-stimulated Cl2 selective currents that showed time-and voltage-independent behavior identical to that of wild-type CFTR (data not shown).

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ABCC7 p.Arg1066His 8702904:94:72

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102 Mutations did not alter single-channel conductance: wild-type, 8.9 6 0.3 pS; F1052V, 9.6 6 0.2 pS; R1066C, 8.9 6 0.4 pS; R1066H, 8.5 6 0.7; R1066C, 8.6 6 0.3; and A1067T, 9.2 6 0.2 pS.

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ABCC7 p.Arg1066His 8702904:102:121

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155 Data are mean 6 S.E. of (6/5) measurements for Po and burst duration, respectively: wild-type (19/18), F1052V (6/5) R1066C (3/3), R1066H (6/7), R1066L (12/5), and A1067T (9/3).

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ABCC7 p.Arg1066His 8702904:155:130

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180 For example, the mutant F1052V was processed normally but had dramatically altered function, whereas the R1066H mutation had a dramatic effect on processing but little discernible effect on function.

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ABCC7 p.Arg1066His 8702904:180:105

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129 C: छ, WT; छϩ, R1066C; E, H1054D; µ, L1065P; Ⅺ, control; Ç, G1061R, Q, R1066H; É, R1066L.

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ABCC7 p.Arg1066His 8662892:129:105

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132 Different substitutions at the same residue always produced the same effect, i.e. R1066C, R1066H, and R1066L, as well as M1101K and M1101R all inhibited maturation, whereas R1070W and R1070Q were both normally processed.

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ABCC7 p.Arg1066His 8662892:132:90

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135 C: L, WT; L 1, R1066C; E, H1054D; &#b5;, L1065P; M, control; &#c7;, G1061R, Q, R1066H; &#c9;, R1066L.

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ABCC7 p.Arg1066His 8662892:135:79

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138 Different substitutions at the same residue always produced the same effect, i.e. R1066C, R1066H, and R1066L, as well as M1101K and M1101R all inhibited maturation, whereas R1070W and R1070Q were both normally processed.

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ABCC7 p.Arg1066His 8662892:138:90

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82 {17bi DI507 [ Y569X W846X 2789+5G->A ,' $492F i ] i I G551D 2622+1 G->A Y1092X 1717-1 G->A E827X A1067T G542X 2183 AA->G R1066H R560K 2184 ins A 3320,ins 5 R553G R1070W 1806 del A & 4005+1G->A W1282X ] i "- Exons Fig.2 Distribution of the different mutations (except AF508) of the CFTR gene in Brittany Table 1 Mutations and genotypes in newborns Genotypes of newborns Number Sweat test AF508/AF508 7 + > 90 AF508/1806 del A 1 + > 90 R553G/G551D 1 Borderline (60) AF508/G551D 1 + > 90 AF508/R1070W 1 40 AF508/G542X 1 + > 90 AF508/G149R 1 45 Total 13 Mutations found in heterozygote newborns AF508 31 R560K 1 1078 del T 1 G544S l G542X 1 V317A 1 R347H 1 V322A 1 Total 38 gene.

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ABCC7 p.Arg1066His 8530001:82:121

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42 The remaining 19 included R352Q (Cremonesi et al. 1992) (three chromosomes), G85E (Zielenski et al. 1991a), Dl152H (High- Fig. 1 A-C Direct sequencing of PCR products from three cystic fibrosis patients (CF) carrying the W57G (A), E193K (B) and D579G (C) mutations, in parallel with control samples (C) displaying normal sequences (N/N) smith et al., personal communication to the CF Genetic Analysis Consortium), R1066H (Ferec et al. 1992), T338I (Saba et al. 1993), 711 +5G--+A (Gasparini et al., personal communication to the CF Genetic Analysis Consortium), M1V (Cheadle et al. 1993), R334W (Gasparini et al. 1991) (two chromosomes each), 4382delA (Claustres et al. 1993), R1158X (Ronchetto et al. 1992), F1052V (Mercier et al. 1993), G1349D (Beaudet et al. 1991), 1898+3A-+G (Cremonesi et al. 1992), $549N (Cutting et al. 1990), 711+ 3A-->G (Petreska et al. 1994), R347P (Dean et al. 1990), 2789+5G--+A (Highsmith et al. 1990), R1066C (Fanen et al. 1992) and S1251N (K~ilin et al. 1992) (one chromosome each).

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ABCC7 p.Arg1066His 7544319:42:414

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70 (UN yet unidentified mutation) Patient Genotype after Genotype at the end number preliminary screening of the analysis UN/UN M1V/4382delA 1717-1G---~A/UN 1717-1G---~A/R1066H AF508/UN AF508/D579G UN/UN M1V/UN AF508/UN AF508/UN UN/UN T338I/R1158X UN/UN G85E/71 I+5G---~A UN/UN D1152H/UN AF508/UN AF508/UN AF508/UN AF508/3849+ 10kbC---~T UN/UN 711+3A---~G/UN AF508/UN AF508/F1052V UN/UN R352Q/W57G UN/UN 1898+3A----~G/UN AF508/UN AF508/711+5G--~A G542X/UN G542X/DI 152H AF508/UN AF508/E193K 1717-1G---~A/UN 1717-1G---~A/2789+5A---)G AF508/UN AF508/G1349D AF508/UN AF508/G85E AF508/UN AF508/R347P AF508/UN AF508/R352Q AF508/UN AF508/R352Q AF508/UN AF508/S549N G542X/UN G542X/R1066H AF508/UN AF508/T338I AF508/UN AF508/R334W AF508/UN AF508/R334W AF508/UN AF508/S1251N AF508/UN AF508/R1066C AF508/UN AF508/D579G results) while the remaining three haplotypes had been found in association with other rare mutations, which were excluded by DGGE analysis in these patients (Table 3).

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ABCC7 p.Arg1066His 7544319:70:167

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ABCC7 p.Arg1066His 7544319:70:671

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85 In total, among the mutations detected in our PS patients, 17 (D579G, E193K, F1052V, 711+5G---~A, G1349D, G85E, R347R R352Q, $549N, 2789+5A---~G, D1152H, R1066H, R334W, T338I, 3849+10kbC---~T, S1251N, R1066C) have been detected in compound heterozygosity with a mutation already classified as severe (AF508, 1717-1G--~A, G542X) and thus can be considered as presumably mild.

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ABCC7 p.Arg1066His 7544319:85:154

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87 R1066C R1066H F1052V 2789+5A->G D1152H 14a14b 15 1617a 17b 18 19 S1251N ItKbC->T G1349D m III!

X

ABCC7 p.Arg1066His 7544319:87:7

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91 Conversely, other presumably mild mutations such as R352Q (three chromosomes), and G85E, Dl152H, 711+5G--~A, R1066H, T338I, R334W, D579G (two chromosomes each), are more frequently detected in the PS cohort, accounting in total for 27.4% of chromosomes.

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ABCC7 p.Arg1066His 7544319:91:109

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93 Screening for only eight presumed mild mutations (R352Q, R1066H, G85E, Dl152H, 711+5G---~A, T338I, R334W and D579G) in addition to the predominant four severe mutations (AF508, G542X, 1717-1G-+A and N1303K), would have allowed the identification of 64.5% of the molecular defects in our patients having PS.

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ABCC7 p.Arg1066His 7544319:93:57

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74 OF PATIENTS POLYT GENOTYPE† ⌬F508/R668C ⌬F508/D1152H ⌬F508/D1270N ⌬F508/R75L ⌬F508/R117H ⌬F508/L206W ⌬F508/R258G ⌬F508/S1235R ⌬F508/R347H Ȳc;F508/R347H R117H/G1349D R117H/712-1G→T G149R/R668C R347H/R1066H R553X/R668C R1070W/2869insG ⌬F508/- G542X/- W1282X/- R334W/- K1060T/- R1162X/- N1303K/- A800G/- ⌬F508/- ⌬F508/- ⌬F508/- ⌬E115/- R117H/- R347H/- G542X/- R553X/- 1677delTA/- 2184delA/- 2789ϩ5G→Α/- S1235R/- W1282X/- -/- -/- -/- -/- 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 22 4 3 1 1 1 1 1 7 1 1 1 1 2 1 1 1 1 1 1 1 3 3 1 19 9T/7T 9T/7T 9T/7T 9T/7T 9T/7T 9T/9T 9T/7T 9T/7T 9T/7T 9T/9T 7T/7T 7T/9T 9T/7T 9T/7T 7T/7T 7T/7T 9T/5T 9T/5T 7T/5T 7T/5T 7T/5T 7T/5T 9T/5T 5T/5T 9T/7T 9T/9T 7T/7T 7T/7T 7T/7T 9T/7T 9T/7T 7T/7T 7T/7T 7T/7T 7T/7T 7T/9T 7T/7T 9T/5T 7T/5T 5T/5T 7T/7T -/- 3 7T/9T *Data were obtained from the Spanish population analyzed in this study.

X

ABCC7 p.Arg1066His 7739684:74:208

status: NEW

X

ABCC7 p.Arg1066His 7739684:74:280

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65 In addition, we identified the following missense mutations: four R668C, one A800G, one (G628R + S1235R, borne on the same chromosome), one (R74W + D1270N, borne on the same chromosome), six R117H, one F1052V, one R117C, one S1235R, one G149R, one R258G, two R347H, one R1066H, one R75L, and one E193K.

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ABCC7 p.Arg1066His 7529962:65:270

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77 of Patients Genotypea 1 AF508 + (G628R + S1235R) 1 AF508 + (R74W + D1270N) 2 AF508 + R668C 4 AF508 + R117H 1 AF508 + R258G 1 AF508 + R75L 1 E193K + N1303K 1 R347H + R1066H 1 R117C + W1282X 1 R553X + R668C 1 G149R + R668C 1 R117H+R117H 18 AF508/unidentified 4 W1282X/unidentified 1 G542X/unidentified 1 N1303K/unidentified 1 S1235R/unidentified 1 R347H/unidentified 1 A800G/unidentified 1 F1052V/unidentified 23 unidentified/unidentified a In parentheses are the two mutations located on the same haplotype.

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ABCC7 p.Arg1066His 7529962:77:165

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108 )-.T R347L Audrezet et al. 1993 G--S-C R347P Dean et al. 1990 1789 ......... C--.G R553G C. Ferec, personal communication CI-T R553X Cutting et al. 1990 1790 ......... G---A R553Q Dork et al.1991a 3328 ......... C-OT R1066C Fanen et al. 1992 3329 ......... G-.A R1066H Ferec et al. 1992 GT R1066L Mercier et al. 1993 3340 ......... CT R1070W M. Macek, Jr., unpublished data 3341 ......... G-A R1070Q Mercier et al. 1993 a This change is a polymorphism, not a disease mutation.

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ABCC7 p.Arg1066His 7526685:108:262

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19 Most of these are missense mutations and as no functional test has been 732 Table 1 Mutations identified in exon 17b of the CFTR gene Mutation Nucleotide Modificationl Ethnic Rcferencesposition ongini (No) 3271-1 G--A 3272-1 G-A Belgian (1) 11F1052V 3286 T-G Belgian (1) 11HI054D 3292 CG French (1) 13G1061R 3313 G-C French (1) 113320 Dup 3320 Duplication of Breton (1) 6 CTATG R1066C 3328 CT French (1) 14 R1066L R1066H A1067T G1069R R1070Q 3359 del CT L1077P H1085R W1089X Y1092X M1IOIR 3329 3329 3331 3337 3341 G-T G-+A G-A G,A G--A 3359 3362 3386 3398 3408 3434 del CT T--C A-.G G-+A C +A T--G Spanish (5) French (1) Breton (1) Breton (1) Bulgarian (1) Bulgarian (3) Rumanian (1) Albanian (1) French (1) Italian (1) French (1) Spanish (1) French (4) Turkish (1I) * Bozon et al, personal communication.

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ABCC7 p.Arg1066His 7529319:19:415

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51 Mutations identified in the population of Slovenia Number of chromosomes Mutations 661 83 AF508 4 G542X 5 R1162X 2 3905 ins T 2 I148T 1 Q552X 1 Q685X 1 S4X 1 457 TAT---~G 1 D192G 1 R1066H 19 Unidentified 121 Exons Frequencies References 10 68.60% Kerem et al. (1989) 11 3.30% Kerem et al. (1990) 19 4.10% Gasparini et al. (1991) 20 1.65% Personal Communication 4 1.65% Personal Communication 11 0.85% Devoto et al. (1991) 13 0.85% This study 1 0.85% Glavac et al. (1993) 4 0.85% This study and Glavac et al. (1993) 5 0.85% This study 17b 0.85% Ftrec et al. (1992) 15.70% by 11 mutations, occurring in 9 exons of the gene (1, 4, 5, 10, 11, 13, 17b, 19, and 20).

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ABCC7 p.Arg1066His 7516305:51:181

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121 1078delT (35), L327R (Ravnik-Glavac a al., unpublished), R334W (36), D36K (31), R347L (26), R347P (14), A349V (26), R352Q (30), 1221delCT (34); Exon 8: W401X (31), 1342-1G-C (25); Exon 9: G458V (37), 1525 -1G-A (38); Exon 10: S492F (34), Q493X (39), 1609delCA (40,17), deltaI507 (39,41), deltaF5O8 (3), 1717-1G-A (39,42); Exon 11: G542X (39), S549N, G551D, R553X (43), R553Q (44), A559T (43), R560K (Fine et al., pers. comm.), R560T (39); Exon 12: Y563N (39), 1833delT (Schwartz et al., pers. comm.), P574H (39), 1898 + 1G-C (31), 1898+3A-G (Ferrari et al., pers. comm.); Exon 13: G628R(G-C) (31), Q685X (Firec et al., pers. comm.), K716X (26), L719X (Dork etal., pers. comm.), 2522insC (15), 2556insAT (45), E827X (34); Exon 14a: E831X (Ffrec et al., pers. comm.), R851X (29), 2721delll (31), C866Y (Audrezet et al., pers. comm.); Exon 14b: 2789+5G-A (Highsmith et al., pers. comm.); Exon 15: 2907denT (21), 2991del32 (Dark and TQmmler, pers. comm.), G970R (31); Exon 16: S977P, 3100insA (D6rk et al., pers. comm.); Exon 17a: I1005R (Dork and TQmmler, pers. comm.), 3272-1G-A (46); Exon 17b: H1054D (F6rec et al., pers. comm.), G1061R (Fdrec et al., pers. comm.), 332Oins5, R1066H, A1067T (34), R1066L (Fe"rec etal., pers. comm.), R1070Q (46), E1104X (Zielenski el al., pers. comm.), 3359delCT (46), L1077P (Bozon « a/., pers. comm.), H1085R (46), Y1092X (Bozon etal., pers. comm.), W1098R, M1101K (Zielenski et al., pers. comm.); Exon 18: D1152H (Highsmith et al., pers. comm.); Exon 19:R1162X (36), 3659delC (39), 3662delA (25), 3667del4 (Chillon et al., pers. comm.), 3737ddA (35), 3821ddT (15), I1234V (35), S1235R (31), Q1238X (26), 3849G-A (25), 385O-3T-G (38); Exon20:3860ins31 (Chillon etal., pers. comm.), S1255X (47), 3898insC (26), 3905insT (Malik et al., pers. comm.), D127ON (48), W1282X (49), Q1291R (Dork et al., pers. comm.), Exon 21: N1303H (35), N13O3K (50), W1316X (43); Exon 22: 11328L/4116delA (Dork and TQmmler, pers. comm.), E1371X (25); Exon 23: 4374+ 1G-T (38); Exon 24: 4382delA (Claustres et al., pers. comm.).

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ABCC7 p.Arg1066His 7521710:121:1175

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31 At present, we have not detected any Spanish CF chromosomes bearing any of the following mutations: 394delTA, Y122X, 556delA, 852de122, R347P, $492F, 1677delTA, V520F, Q552X, R553X, L559S, R560K, R560T, Y563N, P564H, 2043delG, 3320ins5, R1066H, A1067T, H1085R, 3732delA, 3737delA, I1234V, S1255P, 3898insC, Q1291H or 4005+ 1G---~A.

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ABCC7 p.Arg1066His 7513293:31:237

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74 CFTR analysis Patients selected for the study had been characterized previously for CFTR mutations with a reverse dot blot (RDB) Table 1 Anthropometric and CF-associated variables in normal, osteopenic and osteoporotic patients Group 1 normal bone density Group 2 osteopenia Group 3 osteoporosis Statistical evaluation Numerosity 15/82 46/82 21/82 - Mean age (years) 27.73T4.19 26.71T5.93 28.1T9.51 NS Males/females 9/6 19/27 11/10 NS CFTR genotype F508del/UK: 3 UK/ UK: 3 F508del/ F508del: 2 F508del/ G542X: 2 F508del/ R553X: 2 1717-1G> AvW1282X: 1 F508del/ N1303K: 1 G542X/UK: 1 F508del/F508del: 6 UK/UK: 5 F508del/ UK: 3 2183AA>G/UK: 3 2789+5G> A /UK: 3 F508del/N1303K: 3 F508del / R1162X: 3 F508del/2183AA>G: 2 N1303K/ N1303K: 2 R1162X/R1162X: 2 R1162X/ 2183AA>G: 2 2183AA>G/G542X: 1 F508del/ 1898+3A>G: 1 F508del/2789+5G> A: 1 F508del/711+5G>A: 1 F508del/ Q353X: 1 I507del/R1162X: 1 Q552X/ UK: 1 N1303K/G542X: 1 R1162X/3849+ 10KbC>T: 1 R1162X/711+5G>A: 1 T338I/ UK: 1 R553X/UK: 1 F508del/F508del: 4 F508del/ UK: 3 F508del/N1303K: 2 UK/ UK: 2 2789+5G>A/2789+5G> A: 1 F508del/1898+3A>G: 1 F508del/ 2183AA>G: 1 F508del/3849+10KbC> T: 1 F508del/G542X: 1 F508del/ R1066H: 1 F508del/R1162X: 1 Q552X/: 1 R352Q/: 1 R553X/UK: 1 Weight (kg) 61.7T5.89 56.5T8.25 48.9T9.40 p <0.0001 BMI 22.6T1.3 20.3T2.7 18T2.9 p <0.0001 PS/PI 3/12 10/36 7/14 NS FEV1% predicted 52.33T16.73 49.82T21.44 37.1T21.07 p =0.0205 NS = not significant.

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ABCC7 p.Arg1066His 16713399:74:1164

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42 For example, severe processing mutations such as F508del-, R1066H-, and H1085R-CFTR exhibited a low level of mature CFTR (b5% normal).

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ABCC7 p.Arg1066His 23891399:42:59

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44 None M1V A46D E56K P67L R74W G85E E92K D110E D110H R117C R117H E193K L206W R334W I336K T338I S341P R347H R347P R352Q A455E L467P S492F F508del V520F A559T R560S R560T A561E Y569D D579G R668C L927P S945L S977F L997F F1052V H1054D K1060T L1065P R1066C R1066H R1066M A1067T R1070Q R1070W F1074L L1077P H1085R M1101K D1152H S1235R D1270N N1303K 0 100 200 300 400 500 600 * * * CFTR Mutation mRNA (% Normal CFTR) Fig. 1.

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ABCC7 p.Arg1066His 23891399:44:250

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64 Mutant CFTR form CFTR processing Mature/total % Normal CFTR Normal 0.89 &#b1; 0.01 100.0 &#b1; 18.5 G85E -0.05 &#b1; 0.04 -1.0 &#b1; 0.9 R560S 0.00 &#b1; 0.00 0.0 &#b1; 0.0 R1066C 0.02 &#b1; 0.01 0.0 &#b1; 0.0 S492F 0.00 &#b1; 0.00 0.1 &#b1; 0.1 R560T 0.01 &#b1; 0.01 0.2 &#b1; 0.1 V520F 0.05 &#b1; 0.03 0.3 &#b1; 0.2 M1101K 0.05 &#b1; 0.03 0.3 &#b1; 0.1 A561E 0.08 &#b1; 0.04 0.5 &#b1; 0.2 R1066M 0.02 &#b1; 0.02 0.5 &#b1; 0.4 N1303K 0.02 &#b1; 0.02 0.5 &#b1; 0.3 A559T 0.16 &#b1; 0.09 0.6 &#b1; 0.2 M1V 0.06 &#b1; 0.06 0.7 &#b1; 0.6 Y569D 0.11 &#b1; 0.04 0.6 &#b1; 0.2 R1066H 0.08 &#b1; 0.02a 0.7 &#b1; 0.2a L1065P 0.05 &#b1; 0.05 1.0 &#b1; 0.8 L467P 0.10 &#b1; 0.07 1.2 &#b1; 0.8 L1077P 0.08 &#b1; 0.04 1.5 &#b1; 0.6 A46D 0.21 &#b1; 0.08 1.9 &#b1; 0.5a E92K 0.06 &#b1; 0.05 1.9 &#b1; 1.3 H1054D 0.09 &#b1; 0.04 1.9 &#b1; 0.8 F508del 0.09 &#b1; 0.02a 2.3 &#b1; 0.5a H1085R 0.06 &#b1; 0.01a 3.0 &#b1; 0.7a I336K 0.42 &#b1; 0.05a 6.5 &#b1; 0.7a L206W 0.35 &#b1; 0.10a 6.8 &#b1; 1.7a F1074L 0.52 &#b1; 0.03a 10.9 &#b1; 0.6a A455E 0.26 &#b1; 0.10a 11.5 &#b1; 2.5a E56K 0.29 &#b1; 0.04a 12.2 &#b1; 1.5a R347P 0.48 &#b1; 0.04a 14.6 &#b1; 1.8a R1070W 0.61 &#b1; 0.04a 16.3 &#b1; 0.6a P67L 0.36 &#b1; 0.04a 28.4 &#b1; 6.8a R1070Q 0.90 &#b1; 0.01a 29.5 &#b1; 1.4a S977F 0.97 &#b1; 0.01a 37.3 &#b1; 2.4a A1067T 0.78 &#b1; 0.03a 38.6 &#b1; 6.1a D579G 0.72 &#b1; 0.02a 39.3 &#b1; 3.1a D1270N 1.00 &#b1; 0.00a,c 40.7 &#b1; 1.2a S945L 0.65 &#b1; 0.04a 42.4 &#b1; 8.9a L927P 0.89 &#b1; 0.01a,b 43.5 &#b1; 2.5a,b R117C 0.87 &#b1; 0.02a,b 49.1 &#b1; 2.9a,b T338I 0.93 &#b1; 0.03a,b 54.2 &#b1; 3.7a,b L997F 0.90 &#b1; 0.04a,b 59.8 &#b1; 10.4a,b D110H 0.97 &#b1; 0.01a,b 60.6 &#b1; 1.5a,b S341P 0.79 &#b1; 0.02a 65.0 &#b1; 4.9a,b R668C 0.94 &#b1; 0.03a,b 68.5 &#b1; 1.9a,b R74W 0.78 &#b1; 0.01a 69.0 &#b1; 2.7a,b D110E 0.92 &#b1; 0.05a,b 87.5 &#b1; 9.5a,b R334W 0.91 &#b1; 0.05a,b 97.6 &#b1; 10.0a,b K1060T 0.87 &#b1; 0.02a,b 109.9 &#b1; 28.0a,b R347H 0.96 &#b1; 0.02a,c 120.7 &#b1; 2.8a,b S1235R 0.96 &#b1; 0.00a,c 139.0 &#b1; 9.0a,b E193K 0.84 &#b1; 0.02a,b 143.0 &#b1; 17.1a,b R117H 0.86 &#b1; 0.01a,b 164.5 &#b1; 34.2a,b R352Q 0.98 &#b1; 0.01a,b 179.9 &#b1; 8.0a,c F1052V 0.90 &#b1; 0.01a,b 189.9 &#b1; 33.1a,b D1152H 0.96 &#b1; 0.02a,c 312.0 &#b1; 45.5a,b Notes to Table 1: Quantification of steady-state CFTR maturation expressed as the mean (&#b1;SEM; n = 5-9) ratio of mature CFTR to total CFTR (immature plus mature) or level of mature mutant CFTR relative to mature normal-CFTR (% normal CFTR) in FRT cells individually expressing CFTR mutations.

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ABCC7 p.Arg1066His 23891399:64:571

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74 Because the level of CFTR mRNA was similar across the panel of cell lines tested, the range in baseline activity and ivacaftor response likely reflects the severity of the functional defect and/or the 0 50 100 150 200 S341P R347P L467P S492F A559T A561E Y569D L1065P R1066C R1066M L1077P M1101K N1303K R560S L927P R560T H1085R V520F E92K M1V F508del H1054D I336K A46D G85E R334W T338I R1066H R352Q R117C L206W R347H S977F S945L A455E F1074L E56K P67L R1070W D110H D579G D110E R1070Q L997F A1067T E193K R117H R74W K1060T R668C D1270N D1152H S1235R F1052V Baseline With ivacaftor * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Chloride transport (% Normal) Mutant CFTR form 0 100 200 300 400 S341P R347P L467P S492F A559T A561E Y569D L1065P R1066C R1066M L1077P M1101K N1303K R560S L927P R560T H1085R V520F E92K M1V F508del H1054D I336K A46D G85E R334W T338I R1066H R352Q R117C L206W R347H S977F S945L A455E F1074L P67L E56K R1070W D110H D579G D110E R1070Q L997F A1067T E193K R117H R74W K1060T R668C D1270N D1152H S1235R F1052V * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Mature CFTR (% Normal) Mutant CFTR form A B Fig. 2.

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ABCC7 p.Arg1066His 23891399:74:385

status: NEW

X

ABCC7 p.Arg1066His 23891399:74:878

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82 Mutation Patientsa Chloride transport (bc;A/cm2 ) Chloride transport (% normal) EC50 Baseline With ivacaftor Baseline With ivacaftor Fold increase over baselineb Normal 204.5 &#b1; 33.3 301.3 &#b1; 33.8c 100.0 &#b1; 16.3 147.3 &#b1; 16.5c 1.5 266 &#b1; 42 G551D 1282 1.5 &#b1; 0.7 113.2 &#b1; 13.0c 1.0 &#b1; 0.5 55.3 &#b1; 6.3c 55.3 312 &#b1; 73 F1052V 12 177.3 &#b1; 13.7 410.2 &#b1; 11.3c 86.7 &#b1; 6.7 200.7 &#b1; 5.6c 2.3 177 &#b1; 14 S1235R ND 160.6 &#b1; 25.7 352.1 &#b1; 43.4c 78.5 &#b1; 12.6 172.2 &#b1; 21.2c 2.2 282 &#b1; 104 D1152H 185 117.3 &#b1; 23.0 282.7 &#b1; 46.9c 57.4 &#b1; 11.2 138.2 &#b1; 22.9c 2.4 178 &#b1; 67 D1270N 32 109.5 &#b1; 20.5 209.5 &#b1; 27.4c 53.6 &#b1; 10.0 102.4 &#b1; 13.4c 1.9 254 &#b1; 56 R668C 45 99.0 &#b1; 9.4 217.6 &#b1; 11.7c 48.4 &#b1; 4.6 106.4 &#b1; 5.7c 2.2 517 &#b1; 105 K1060T ND 89.0 &#b1; 9.8 236.4 &#b1; 20.3c 43.5 &#b1; 4.8 115.6 &#b1; 9.9c 2.7 131 &#b1; 73 R74W 25 86.8 &#b1; 26.9 199.1 &#b1; 16.8c 42.5 &#b1; 13.2 97.3 &#b1; 8.2c 2.3 162 &#b1; 17 R117H 739 67.2 &#b1; 13.3 274.1 &#b1; 32.2c 32.9 &#b1; 6.5 134.0 &#b1; 15.7c 4.1 151 &#b1; 14 E193K ND 62.2 &#b1; 9.8 379.1 &#b1; 1.1c 30.4 &#b1; 4.8 185.4 &#b1; 1.0c 6.1 240 &#b1; 20 A1067T ND 55.9 &#b1; 3.2 164.0 &#b1; 9.7c 27.3 &#b1; 1.6 80.2 &#b1; 4.7c 2.9 317 &#b1; 214 L997F 27 43.7 &#b1; 3.2 145.5 &#b1; 4.0c 21.4 &#b1; 1.6 71.2 &#b1; 2.0c 3.3 162 &#b1; 12 R1070Q 15 42.0 &#b1; 0.8 67.3 &#b1; 2.9c 20.6 &#b1; 0.4 32.9 &#b1; 1.4c 1.6 164 &#b1; 20 D110E ND 23.3 &#b1; 4.7 96.4 &#b1; 15.6c 11.4 &#b1; 2.3 47.1 &#b1; 7.6c 4.1 213 &#b1; 51 D579G 21 21.5 &#b1; 4.1 192.0 &#b1; 18.5c 10.5 &#b1; 2.0 93.9 &#b1; 9.0c 8.9 239 &#b1; 48 D110H 30 18.5 &#b1; 2.2 116.7 &#b1; 11.3c 9.1 &#b1; 1.1 57.1 &#b1; 5.5c 6.2 249 &#b1; 59 R1070W 13 16.6 &#b1; 2.6 102.1 &#b1; 3.1c 8.1 &#b1; 1.3 49.9 &#b1; 1.5c 6.2 158 &#b1; 48 P67L 53 16.0 &#b1; 6.7 88.7 &#b1; 15.7c 7.8 &#b1; 3.3 43.4 &#b1; 7.7c 5.6 195 &#b1; 40 E56K ND 15.8 &#b1; 3.1 63.6 &#b1; 4.4c 7.7 &#b1; 1.5 31.1 &#b1; 2.2c 4.0 123 &#b1; 33 F1074L ND 14.0 &#b1; 3.4 43.5 &#b1; 5.4c 6.9 &#b1; 1.6 21.3 &#b1; 2.6c 3.1 141 &#b1; 19 A455E 120 12.9 &#b1; 2.6 36.4 &#b1; 2.5c 6.3 &#b1; 1.2 17.8 &#b1; 1.2c 2.8 170 &#b1; 44 S945L 63 12.3 &#b1; 3.9 154.9 &#b1; 47.6c 6.0 &#b1; 1.9 75.8 &#b1; 23.3c 12.6 181 &#b1; 36 S977F 9 11.3 &#b1; 6.2 42.5 &#b1; 19.1c 5.5 &#b1; 3.0 20.8 &#b1; 9.3c 3.8 283 &#b1; 36 R347H 65 10.9 &#b1; 3.3 106.3 &#b1; 7.6c 5.3 &#b1; 1.6 52.0 &#b1; 3.7c 9.8 280 &#b1; 35 L206W 81 10.3 &#b1; 1.7 36.4 &#b1; 2.8c 5.0 &#b1; 0.8 17.8 &#b1; 1.4c 3.6 101 &#b1; 13 R117C 61 5.8 &#b1; 1.5 33.7 &#b1; 7.8c 2.9 &#b1; 0.7 16.5 &#b1; 3.8c 5.7 380 &#b1; 136 R352Q 46 5.5 &#b1; 1.0 84.5 &#b1; 7.8c 2.7 &#b1; 0.5 41.3 &#b1; 3.8c 15.2 287 &#b1; 75 R1066H 29 3.0 &#b1; 0.3 8.0 &#b1; 0.8c 1.5 &#b1; 0.1 3.9 &#b1; 0.4c 2.6 390 &#b1; 179 T338I 54 2.9 &#b1; 0.8 16.1 &#b1; 2.4c 1.4 &#b1; 0.4 7.9 &#b1; 1.2c 5.6 334 &#b1; 38 R334W 150 2.6 &#b1; 0.5 10.0 &#b1; 1.4c 1.3 &#b1; 0.2 4.9 &#b1; 0.7c 3.8 259 &#b1; 103 G85E 262 1.6 &#b1; 1.0 1.5 &#b1; 1.2 0.8 &#b1; 0.5 0.7 &#b1; 0.6 NS NS A46D ND 2.0 &#b1; 0.6 1.1 &#b1; 1.1 1.0 &#b1; 0.3 0.5 &#b1; 0.6 NS NS I336K 29 1.8 &#b1; 0.2 7.4 &#b1; 0.1c 0.9 &#b1; 0.1 3.6 &#b1; 0.1c 4 735 &#b1; 204 H1054D ND 1.7 &#b1; 0.3 8.7 &#b1; 0.3c 0.8 &#b1; 0.1 4.2 &#b1; 0.1c 5.3 187 &#b1; 20 F508del 29,018 0.8 &#b1; 0.6 12.1 &#b1; 1.7c 0.4 &#b1; 0.3 5.9 &#b1; 0.8c 14.8 129 &#b1; 38 M1V 9 0.7 &#b1; 1.4 6.5 &#b1; 1.9c 0.4 &#b1; 0.7 3.2 &#b1; 0.9c 8.0 183 &#b1; 85 E92K 14 0.6 &#b1; 0.2 4.3 &#b1; 0.8c 0.3 &#b1; 0.1 2.1 &#b1; 0.4c 7.0 198 &#b1; 46 V520F 58 0.4 &#b1; 0.2 0.5 &#b1; 0.2 0.2 &#b1; 0.1 0.2 &#b1; 0.1 NS NS H1085R ND 0.3 &#b1; 0.2 2.1 &#b1; 0.4 0.2 &#b1; 0.1 1.0 &#b1; 0.2 NS NS R560T 180 0.3 &#b1; 0.3 0.5 &#b1; 0.5 0.1 &#b1; 0.1 0.2 &#b1; 0.2 NS NS L927P 15 0.2 &#b1; 0.1 10.7 &#b1; 1.7c 0.1 &#b1; 0.1 5.2 &#b1; 0.8c 52.0 313 &#b1; 66 R560S ND 0.0 &#b1; 0.1 -0.2 &#b1; 0.2 0.0 &#b1; 0.0 -0.1 &#b1; 0.1 NS NS N1303K 1161 0.0 &#b1; 0.0 1.7 &#b1; 0.3 0.0 &#b1; 0.0 0.8 &#b1; 0.2 NS NS M1101K 79 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS L1077P 42 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS R1066M ND 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS R1066C 100 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS L1065P 25 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS Y569D 9 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS A561E ND 0.0 &#b1; 0.1 0.0 &#b1; 0.1 0.0 &#b1; 0.0 0.0 &#b1; 0.1 NS NS A559T 43 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS S492F 16 0.0 &#b1; 0.0 1.7 &#b1; 1.2 0.0 &#b1; 0.0 0.8 &#b1; 0.6 NS NS L467P 16 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS R347P 214 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 0.0 &#b1; 0.0 NS NS S341P 9 0.0 &#b1; 0.0 0.2 &#b1; 0.2 0.0 &#b1; 0.0 0.1 &#b1; 0.1 NS NS a Number of individuals with the individual mutation in the CFTR-2 database (www.CFTR2.org).

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ABCC7 p.Arg1066His 23891399:82:2695

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86 For example, the baseline level of chloride transport and ivacaftor response was higher for mutant CFTR forms associated with mild defects in CFTR processing (e.g., E56K, P67L, L206W, A455E, D579G, S945L, S977F, A1067T, R1070Q, R1070W, F1074L, and D1270N) than for those associated with severe defects in CFTR processing (e.g., F508del, H1054D, R1066H).

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ABCC7 p.Arg1066His 23891399:86:345

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92 Mutant CFTR forms that did not significantly respond to ivacaftor under the experimental conditions used in this study were generally associated with severe defects in CFTR processing A B C D E F 0 100 200 300 400 -9 -8 -7 -6 -5 -4 0 S1235R D1152H F1052V D1270N ivacaftor [Log M] 0 100 200 300 400 -9 -8 -7 -6 -5 -4 0 R668C K1060T R74W R117H ivacaftor [Log M] 0 100 200 300 400 -9 -8 -7 -6 -5 -4 0 E193K A1067T L997F R1070Q ivacaftor [Log M] Chloride Transport ( &#b5;A/cm 2 ) Chloride Transport ( &#b5;A/cm 2 ) Chloride Transport ( &#b5;A/cm 2 ) Chloride Transport ( &#b5;A/cm 2 ) Chloride Transport ( &#b5;A/cm 2 ) Chloride Transport ( &#b5;A/cm 2 ) Chloride Transport ( &#b5;A/cm 2 ) Chloride Transport ( &#b5;A/cm 2 ) Chloride Transport ( &#b5;A/cm 2 ) 0 100 200 300 400 -9 -8 -7 -6 -5 -4 0 D110E D579G D110H R1070W ivacaftor [Log M] 0 100 200 300 400 -9 -8 -7 -6 -5 -4 0 F1074L E56K P67L A455E ivacaftor [Log M] 0 100 200 300 400 -9 -8 -7 -6 -5 -4 0 R347H S945L L206W S977F ivacaftor [Log M] 0 100 200 300 400 -8 -6 -4 0 T338I R1066H R117C R352Q ivacaftor [Log M] 0 100 200 300 400 -9 -8 -7 -6 -5 -4 0 F508del R334W H1054D E92K ivacaftor [Log M] 0 5 10 15 20 -9 -8 -7 -6 -5 -4 0 F508del R334W H1054D E92K R1066H T338I ivacaftor [Log M] G H I Fig. 3.

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ABCC7 p.Arg1066His 23891399:92:1032

status: NEW

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ABCC7 p.Arg1066His 23891399:92:1210

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357 Moreover, a large ''hot spot`` region for natural CFTR mutations is located at the NBD1:ICL4 interface, involving (1) six ICL4 positions (H1054D, G1061R, L1065P, R1066H/R1066C, F1074L, and L1077P), which line the path followed by F508 during the MD1 conformational transition from its initial to its final position, and (2) seven positions in NBD1 (S492F, I507del, F508del, V520F, A559T, R560K/R560T, and A561E) (Fig. 7c).

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ABCC7 p.Arg1066His 25287046:357:162

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79 The test has a sensitivity and a specificity of more than Table 3 List of 60 mutations in the cystic fibrosis transmembrane regulator gene (specificity 100%) F508del I507del F508C 621+1G>T D110H E585X G1349D I502T 1706del17 1677delTA R117H H139R 1898+1G>A 4015delA G542X 1717-1G>A Q552X 852del22 G178R 1898+3A>G G551D S549R(A>C) 2183AA>G T338I 991del5 1898+5G>T N1303K 4016insT 3849+10kb C>T R347P R334W 2184insA G85E 711+5G>A 711+1G>T 1259insA R347H 2522insC 2789+5G>A W1282X G1244E R1066H R352Q 3120+1G>A I148T 3199del6 S912X R1158X 1717-8G>A R1066C R1162X 4382delA D1152H L1077P D579G 3272-26A>G L1065P R553X PoliT: 5T, 7T, 9T 1874insT 3659delC 99%.

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ABCC7 p.Arg1066His 25304080:79:484

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15 Correspondence: Mei W. Baker (mwbaker@wisc.edu) Improving newborn screening for cystic fibrosis using next-generation sequencing technology: a technical feasibility study Mei W. Baker, MD1,2 , Anne E. Atkins, MPH2 , Suzanne K. Cordovado, PhD3 , Miyono Hendrix, MS3 , Marie C. Earley, PhD3 and Philip M. Farrell, MD, PhD1,4 Table 1ߒ CF-causing or varying consequences mutations in the MiSeqDx IUO Cystic Fibrosis System c.1521_1523delCTT (F508del) c.2875delG (3007delG) c.54-5940_273ߙ+ߙ10250del21kb (CFTRdele2,3) c.3909C>G (N1303K) c.3752G>A (S1251N) Mutations that cause CF when combined with another CF-causing mutation c.1624G>T (G542X) c.2988ߙ+ߙ1G>A (3120ߙ+ߙ1G->A) c.3964-78_4242ߙ+ߙ577del (CFTRdele22,23) c.613C>T (P205S) c.1021T>C (S341P) c.948delT (1078delT) c.2988G>A (3120G->A) c.328G>C (D110H) c.200C>T (P67L) c.1397C>A (S466X(C>A)) c.1022_1023insTC (1154insTC) c.2989-1G>A (3121-1G->A) c.3310G>T (E1104X) c.3937C>T (Q1313X) c.1397C>G (S466X(C>G)) c.1081delT (1213delT) c.3140-26A>G (3272-26A->G) c.1753G>T (E585X) c.658C>T (Q220X) c.1466C>A (S489X) c.1116ߙ+ߙ1G>A (1248ߙ+ߙ1G->A) c.3528delC (3659delC) c.178G>T (E60X) c.115C>T (Q39X) c.1475C>T (S492F) c.1127_1128insA (1259insA) c.3659delC (3791delC) c.2464G>T (E822X) c.1477C>T (Q493X) c.1646G>A (S549N) c.1209ߙ+ߙ1G>A (1341ߙ+ߙ1G->A) c.3717ߙ+ߙ12191C>T (3849ߙ+ߙ10kbC->T) c.2491G>T (E831X) c.1573C>T (Q525X) c.1645A>C (S549R) c.1329_1330insAGAT (1461ins4) c.3744delA (3876delA) c.274G>A (E92K) c.1654C>T (Q552X) c.1647T>G (S549R) c.1393-1G>A (1525-1G->A) c.3773_3774insT (3905insT) c.274G>T (E92X) c.2668C>T (Q890X) c.2834C>T (S945L) c.1418delG (1548delG) c.262_263delTT (394delTT) c.3731G>A (G1244E) c.292C>T (Q98X) c.1013C>T (T338I) c.1545_1546delTA (1677delTA) c.3873ߙ+ߙ1G>A (4005ߙ+ߙ1G->A) c.532G>A (G178R) c.3196C>T (R1066C) c.1558G>T (V520F) c.1585-1G>A (1717-1G->A) c.3884_3885insT (4016insT) c.988G>T (G330X) c.3197G>A (R1066H) c.3266G>A (W1089X) c.1585-8G>A (1717-8G->A) c.273ߙ+ߙ1G>A (405ߙ+ߙ1G->A) c.1652G>A (G551D) c.3472C>T (R1158X) c.3611G>A (W1204X) c.1679ߙ+ߙ1.6kbA>G (1811ߙ+ߙ1.6kbA->G) c.274-1G>A (406-1G->A) c.254G>A (G85E) c.3484C>T (R1162X) c.3612G>A (W1204X) c.1680-1G>A (1812-1G->A) c.4077_4080delTGTTinsAA (4209TGTT->AA) c.2908G>C (G970R) c.349C>T (R117C) c.3846G>A (W1282X) c.1766ߙ+ߙ1G>A (1898ߙ+ߙ1G->A) c.4251delA (4382delA) c.595C>T (H199Y) c.1000C>T (R334W) c.1202G>A (W401X) c.1766ߙ+ߙ3A>G (1898ߙ+ߙ 3A->G) c.325_327delTATinsG (457TAT->G) c.1007T>A (I336K) c.1040G>A (R347H) c.1203G>A (W401X) c.2012delT (2143delT) c.442delA (574delA) c.1519_1521delATC (I507del) c.1040G>C (R347P) c.2537G>A (W846X) c.2051_2052delAAinsG (2183AA->G) c.489ߙ+ߙ1G>T (621ߙ+ߙ 1G->T) c.2128A>T (K710X) c.1055G>A (R352Q) c.3276C>A (Y1092X (C>A)) c.2052delA (2184delA) c.531delT (663delT) c.3194T>C (L1065P) c.1657C>T (R553X) c.3276C>G (Y1092X (C>G)) c.2052_2053insA (2184insA) c.579ߙ+ߙ1G>T (711ߙ+ߙ 1G->T) c.3230T>C (L1077P) c.1679G>A (R560K) c.366T>A (Y122X) c.2175_2176insA (2307insA) c.579ߙ+ߙ3A>G (711ߙ+ߙ 3A->G) c.617T>G (L206W) c.1679G>C (R560T) - c.2215delG (2347delG) c.579ߙ+ߙ5G>A (711ߙ+ߙ 5G->A) c.1400T>C (L467P) c.2125C>T (R709X) - c.2453delT (2585delT) c.580-1G>T (712-1G->T) c.2195T>G (L732X) c.223C>T (R75X) - c.2490ߙ+ߙ1G>A (2622ߙ+ߙ1G->A) c.720_741delAGGGAG AATGATGATGAAGTAC (852del22) c.2780T>C (L927P) c.2290C>T (R764X) - c.2583delT (2711delT) c.1364C>A (A455E) c.3302T>A (M1101K) c.2551C>T (R851X) - c.2657ߙ+ߙ5G>A (2789ߙ+ߙ5G->A) c.1675G>A (A559T) c.1A>G (M1V) c.3587C>G (S1196X) - Mutations/variants that were validated in this study are in bold. CF, cystic fibrosis. Table 1ߒ Continued on next page reduce carrier detection and potentially improve the positive predictive value (PPV), the NBS goals of equity and the highest possible sensitivity become more difficult to achieve.

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ABCC7 p.Arg1066His 25674778:15:2034

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45 DNA samples were multiplied by multiplex PCR with a CF 22Mut and CF 14Mut+Tn strip assay kit which has 36 common mutations of the CFTR gene (DF508, DI507, F508C, I502T, 1706del17, 1677del TA, G542X, 1717-1G>A, R553X, Q552X, G551D, S549R(A>C), N1303K, 4016insT, R1162X, R1158X, W1282X, G1244E, 2789+5G>A, 2183AA>G, 711+5G>A, 711+1G>T, G85E, 3849+10kbC>T, 621+1G>T, R117H, D1152H, L1065P, R1066H, L1077P, 4382delA, 1259insA, 852del22, R347P, T338I, S912X and Allele5T-7T-9T).

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ABCC7 p.Arg1066His 25835118:45:387

status: NEW

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385 [Gly576Ala;Arg668Cys] D579G c.1736A>G CF-PS varying clinical consequence p.Asp579Gly E585X c.1753G>T CF-PI CF-causing p.Glu585* H609L c.1826A>T CFTR-RD nd p.His609Leu A613T c.1837G>A CF-PS nd p.Ala613Thr D614G c.1841A>G CF-PS unknown significance p.Asp614Gly 2143delT c.2012delT CF-PS CF-causing p.Leu671* 2183AA>G c.2051_2052delAAinsG CF-PI,CF-PS CF-causing p.Lys684SerfsX38 2184insA c.2052_2053insA CF-PI CF-causing p.Gln685ThrfsX4 R709X c.2125C>T CF-PI CF-causing p.Arg709* L732X c.2195T>G CF-PI CF-causing p.Leu732* R764X c.2290C>T CF-PI CF-causing p.Arg764* Q779X c.2335C>T uncertain: CF-PI and/or CF-PS nd p.Gln779* E831X c.2491G>T CF-PS CF-causing p.Glu831* Y849X c.2547C>A CF-PI CF-causing p.Tyr849* ex14b-17bdel c.2620-674_3367+198del9858 CF-PI nd 2789+5G>A c.2657+5G>A CF-PI,CF-PS CF-causing 2790-2A>G c.2658-2A>G CF-PS nd S912L c.2735C>T uncertain: found only with an unknown allele in trans nd p.Ser912Leu S945L c.2834C>T CF-PS CF-causing p.Ser945Leu S977F c.2930C>T CFTR-RD varying clinical consequence p.Ser977Phe L997F c.2991G>C CF-PS,CFTR-RD,CBAVD non CF-causing p.Leu997Phe ex17a-18del c.2988+1173_3468+2111del8600 CF-PI nd P1013L c.3038C>T CFTR-RD nd p.Pro1013Leu Y1032C c.3095A>G CFTR-RD nd p.Tyr1032Cys 3272-26A>G c.3140-26A>G CF-PS CF-causing L1065P c.3194T>C CF-PI,CF-PS CF-causing p.Leu1065Pro L1065R c.3194T>G uncertain: CF-PI and/or CF-PS nd p.Leu1065Arg R1066C c.3196C>T CF-PI CF-causing p.Arg1066Cys R1066H c.3197G>A CF-PI CF-causing p.Arg1066His G1069R c.3205G>A uncertain: found only with an unknown allele in trans varying clinical consequence p.Gly1069Arg Continued on next page of 0.021).

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ABCC7 p.Arg1066His 25910067:385:1427

status: NEW

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ABCC7 p.Arg1066His 25910067:385:1463

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83 In several countries, when at least one Table 1 (Continued ) HGVS nomenclature Legacy name cDNA nucleotide name Protein name 3121-1G4A c.2989-1G4A 3199del6 (3195del6) c.3067_3072delATAGTG p.Ile1023_Val1024del 3272-26 A4G c.3140-26 A4G L1065P c.3194 T4C p.Leu1065Pro R1066C c.3196C4T p.Arg1066Cys R1066H c.3197G4A p.Arg1066His L1077P c.3230 T4C p.Leu1077Pro W1089X c.3266G4A p.Trp1089* Y1092X c.3276C4A p.Tyr1092* E1104X c.3310G4T p.Glu1104* R1158X c.3472C4T p.Arg1158* S1196X c.3587C4G p.Ser1196* W1204X(3743G4A) c.3611G4A p.Trp1204* W1204X(3744G4A) c.3612G4A p.Trp1204* 3791delC c.3659delC p.Thr1220Lysfs*8 3849+10kbC4T c.3718-2477C4T p.(?)

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ABCC7 p.Arg1066His 26014425:83:296

status: NEW

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ABCC7 p.Arg1066His 26014425:83:315

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92 Well known examples include missense variants D110H, R117C, L206W, R347P, R347H, R1066H, or splice variants that produce both aberrant and full-length transcript such as 3849+10kbC4T, 2789+5G4A, 3272-26 A4G, 711+3 A4G.

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ABCC7 p.Arg1066His 26014425:92:81

status: NEW

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