ABCMdb

ABCC7 p.Trp1310*

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[hide] Improved detection of cystic fibrosis mutations in... Genet Med. 2001 May-Jun;3(3):168-76. Heim RA, Sugarman EA, Allitto BA
Improved detection of cystic fibrosis mutations in the heterogeneous U.S. population using an expanded, pan-ethnic mutation panel.
Genet Med. 2001 May-Jun;3(3):168-76., [PMID:11388756]

Abstract [show]
PURPOSE: To determine the comparative frequency of 93 CFTR mutations in U.S. individuals with a clinical diagnosis of cystic fibrosis (CF). METHODS: A total of 5,840 CF chromosomes from Caucasians, Ashkenazi Jews, Hispanics, African Americans, Native Americans, Asians, and individuals of mixed race were analyzed using a pooled ASO hybridization strategy. RESULTS: Sixty-four mutations provided a sensitivity of 70% to 95% in all ethnic groups except Asians, and at least 81% when the U.S. population was considered as a whole. CONCLUSIONS: For population-based carrier screening for CF in the heterogeneous U.S. population, which is characterized by increasing admixture, a pan-ethnic mutation panel of 50 to 70 CFTR mutations may provide a practical test that maximizes sensitivity.

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83 These mutations, Y122X, 556delA, 2909delT, 3358delAC, 3750delAG, W1310X, and W1316X, were subsequently excluded from the 86-mutation panel. Login to comment

[hide] High allelic heterogeneity between Afro-Brazilians... Genet Test. 2003 Fall;7(3):213-8. Raskin S, Pereira L, Reis F, Rosario NA, Ludwig N, Valentim L, Phillips JA 3rd, Allito B, Heim RA, Sugarman EA, Probst CM, Faucz F, Culpi L
High allelic heterogeneity between Afro-Brazilians and Euro-Brazilians impacts cystic fibrosis genetic testing.
Genet Test. 2003 Fall;7(3):213-8., [PMID:14641997]

Abstract [show]
Cystic fibrosis (CF) is an autosomal recessive disease caused by at least 1,000 different mutations in the cystic fibrosis transmembrane conductance regulator gene (CFTR). To determine the frequency of 70 common worldwide CFTR mutations in 155 Euro-Brazilian CF patients and in 38 Afro-Brazilian CF patients, we used direct PCR amplification of DNA from a total of 386 chromosomes from CF patients born in three different states of Brazil. The results show that screening for seventy mutations accounts for 81% of the CF alleles in Euro-Brazilians, but only 21% in the Afro-Brazilian group. We found 21 different mutations in Euro-Brazilians and only 7 mutations in Afro-Brazilians. The frequency of mutations and the number of different mutations detected in Euro-Brazilians are different from Northern European and North American populations, but similar to Southern European populations; in Afro-Brazilians, the mix of CF-mutations is different from those reported in Afro-American CF patients. We also found significant differences in detection rates between Euro-Brazilian (75%) and Afro-Brazilian CF patients (21%) living in the same state, Minas Gerais. These results, therefore, have implications for the use of DNA-based tests for risk assessment in heterogeneous populations like the Brazilians. Further studies are needed to identify the remaining CF mutations in the different populations and regions of Brazil.

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63 FREQUENCIES OF 70 CFTR MUTATIONS IN DIFFERENT STATES OF BRAZIL, BY CONTINENTA L GROUP CFTR mutations SC PR MG detected n n n n % n % N % DF508 53 39 54 146 47.1 8 10.5 154 39.9 G542X 6 9 8 23 7.4 1 1.3 24 6.2 R1162X 9 2 4 15 4.8 2 2.6 17 4.4 N1303K 5 5 0 10 3.2 0 0 10 2.6 R334W 5 1 4 10 3.2 0 0 10 2.6 G85E 2 2 4 8 2.6 1 1.3 9 2.3 1717-1G®A 1 3 2 6 1.9 0 0 6 1.6 W1282X 4 1 1 6 1.9 0 0 6 1.6 3849110kbC®T 1 3 1 5 1.6 0 0 5 1.3 R553X 0 2 0 2 0.7 0 0 2 0.5 1812-1G®A 0 1 3 4 1.3 1 1.3 5 1.3 2183AA®G 2 1 0 3 1.0 0 0 3 0.8 312011G®A 0 0 2 2 0.7 2 2.6 4 1.0 Y1092X 0 1 1 2 0.7 1 1.3 3 0.8 G551D 0 0 0 0 0 0 0 0 0 W1089X 0 0 1 1 0.3 0 0 1 0.3 6211G®T 0 1 0 1 0.3 0 0 1 0.3 Q1238X 0 1 0 1 0.3 0 0 1 0.3 711-1G®T 0 1 0 1 0.3 0 0 1 0.3 R347P 1 0 0 1 0.3 0 0 1 0.3 189811G®A 1 0 0 1 0.3 0 0 1 0.3 I507 0 0 1 1 0.3 0 0 1 0.3 Subtotal 91 73 86 250 80.7 16 21.1 266 68.9 Alleles with CFTR 5 27 28 60 19.4 60 79.0 120 31.1 mutations not detected Total 96 100 114 310 100.0 76 100.0 386 100.0 Detection rate (%) 94.8 73.0 75.4 250 80.7 16 21.1 266 68.9 The following 70 CFTR mutations were selected and tested on the basis of frequency in various populations, known association with CF, or predicted deleterious effect on the CFTR protein product; DF508, G542X, N1303K, G551D, R553X, DI507, A455E, A559T, C524X, D1270N, E60X, G178R, G330X, G85E, 2307insA, I148T, K710X, P574H, Q1238X, Q493X, Q890X, R1158X, R1162X, R117H, R334W, R347H, R347P 2307insA, I148T, K710X, P574H, Q1238X, Q493X, Q890X, R1158X, R1162X, R117H, R334W, R347H, R347P 2307insA, 1148T, K710X, P574H, Q1238X, Q493X, Q890X, R1158X, R1162X, R117H, R334W, R347H, R347P, R352Q, R560T, S1196X, S1255X, S364P, S549N, S549R, V520F, W1089X, W1282X, W1310X, W1316X, Y1092X, Y122X, Y563D, 1078delT,1677delTA,1717-1G-A,1812-1G-A,1898 1 1G-A, 2043delG,2183delAA-G, 2184delA, 2789 1 5G-A, 2869insG, 2909delT, 3120 1 1G-A, 3120G-A, 3358delAC, 3659delC, 3662delA, 3750delAG, 3791delC, 3821delT, 3849 1 10KbC-T, 3849 1 4A-G, 3905insT, 405 1 1G-A, 444delA, 556delA, 574delA, 621 1 1G-T, and 711 1 1G-T. aSC, Santa Catarina State; PR, Parana State; MG, Minas Gerais State; n, number of chromosomes. Login to comment

[hide] Alpha1-antitrypsin deficiency alleles and the Taq-... Eur Respir J. 1998 Apr;11(4):873-9. Mahadeva R, Westerbeek RC, Perry DJ, Lovegrove JU, Whitehouse DB, Carroll NR, Ross-Russell RI, Webb AK, Bilton D, Lomas DA
Alpha1-antitrypsin deficiency alleles and the Taq-I G-->A allele in cystic fibrosis lung disease.
Eur Respir J. 1998 Apr;11(4):873-9., [PMID:9623690]

Abstract [show]
Cystic fibrosis (CF) is characterized by progressive and ultimately fatal pulmonary disease although there are notable variations in clinical features. This heterogeneity is thought to lie outside the cystic fibrosis transmembrane regulator (CFTR) gene locus and may stem from deficiencies in the antiproteinase screen that protects the lung from proteolytic attack. One hundred and fifty seven patients were recruited from two UK CF centres. The serum concentrations of alpha1-antitrypsin, alpha1-antichymotrypsin and C-reactive protein (CRP) were determined and patients were screened for the common S and Z deficiency alleles of alpha1-antitrypsin and the G-->A mutation in the 3' noncoding region of the alpha1-antitrypsin gene (Taq-I G-->A allele). Alpha1-antitrypsin deficiency phenotypes were detected in 20 (16 MS, 1 S and 3 MZ) out of 147 unrelated tested CF patients and were, surprisingly, associated with significantly better lung function (adjusted mean forced expiratory volume in one second (FEV1) 62.5% of predicted for deficient group and 51.1% pred for normal alleles; p=0.043). The Taq-I G-->A allele was found in 21 out of 150 unrelated patients and had no significant effect on CF lung disease or on levels of alpha1-antitrypsin during the inflammatory response. We show here that, contrary to current thinking, common mutations of alpha1-antitrypsin that are associated with mild to moderate deficiency of the protein predict a subgroup of cystic fibrosis patients with less severe pulmonary disease. Moreover, the Taq-I G-->A allele has no effect on serum levels of alpha1-antitrypsin in the inflammatory response, which suggests that the previously reported association of the Taq-I G-->A allele with chronic obstructive pulmonary disease is not mediated by its effect on the serum level of alpha1-antitrypsin.

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51 The 39 "other" CF mutations in the normal α1-AT phenotype 508/other group were: six patients G551D, three R117H, three 621+1G→T, two R1162X, two G542X and one each had P67L, 1078delT, 2711delT, 1717-1G→A, V520F, 1898+1G→T, W1310X and N1303K in addition to the ∆F508 mutation. Login to comment

[hide] Genotype-phenotype correlations for the paranasal ... Am J Respir Crit Care Med. 1999 May;159(5 Pt 1):1412-6. Jorissen MB, De Boeck K, Cuppens H
Genotype-phenotype correlations for the paranasal sinuses in cystic fibrosis.
Am J Respir Crit Care Med. 1999 May;159(5 Pt 1):1412-6., [PMID:10228103]

Abstract [show]
Genotype-phenotype correlations in cystic fibrosis (CF) have been found for lung and pancreatic function, but not for paranasal sinus disease. Because such correlations may have pathophysiological and clinical implications, the correlation of mutations, in particular DeltaF508, with paranasal sinus disease was investigated in 113 CF patients with known genotype. The clinical importance of paranasal sinus disease was evaluated using three parameters: polyps, overall clinical severity of upper airway problems, and surgery. Polyps were evaluated by nasal endoscopy and graded on a five-point scale. Four severity groups were distinguished based on history, clinical records, and examination: no upper airway problems; more problems than in control subjects; severe, recurrent or chronic problems; and paranasal sinus surgery cases. DeltaF508 homozygosity correlated with clinical severity (p < 0.02) and with the presence of polyps on endoscopy (p < 0.05). The relative risk for paranasal sinus surgery in DeltaF508 homozygous CF patients was 2.33. In conclusion, there are genotype-phenotype correlations for paranasal sinus disease in CF. DeltaF508 homozygosity is a risk factor for paranasal sinus disease in CF.

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120 of Patients in Surgical Group ⌬F508 Genotype Homozygosity 69 61 22 Compound heterozygosity 33 29 5 Negative 11 10 1 Mutations ⌬F508 171 75.7 27 Non-⌬F508 55 24.3 6 R117H (4) C276X (1) 394delT (1) W401X (2,† ) A455E (1) G542X (4,‡ ) G551D (1) R553X (1) G628R(G→C) (1) Y1092X (1) D1152H (1) S1251N (1) W1282X (3) N1303K (8) W1310X (1) 1717-1G→A (3,† ) 1898ϩ1G→C (1) 2183AA-G (3,†† ) 3659delC (2) 3272-26A→G (2,† ) 4218-insT (2) unknown (11,‡ ) * The genotype and mutations are given for the 113 patients with CF. Login to comment
121 of Patients in Surgical Group DF508 Genotype Homozygosity 69 61 22 Compound heterozygosity 33 29 5 Negative 11 10 1 Mutations DF508 171 75.7 27 Non-DF508 55 24.3 6 R117H (4) C276X (1) 394delT (1) W401X (2,ߤ ) A455E (1) G542X (4,ߥ ) G551D (1) R553X (1) G628R(G࢐C) (1) Y1092X (1) D1152H (1) S1251N (1) W1282X (3) N1303K (8) W1310X (1) 1717-1G࢐A (3,ߤ ) 189811G࢐C (1) 2183AA-G (3,ߤߤ ) 3659delC (2) 3272-26A࢐G (2,ߤ ) 4218-insT (2) unknown (11,ߥ ) * The genotype and mutations are given for the 113 patients with CF. Login to comment

[hide] CFTR haplotype backgrounds on normal and mutant CF... Hum Mol Genet. 1994 Apr;3(4):607-14. Cuppens H, Teng H, Raeymaekers P, De Boeck C, Cassiman JJ
CFTR haplotype backgrounds on normal and mutant CFTR genes.
Hum Mol Genet. 1994 Apr;3(4):607-14., [PMID:7520797]

Abstract [show]
Ten polymorphic loci, located in a 1 Mb interval across the cystic fibrosis locus, were analyzed on normal and mutant CFTR genes. A different distribution of haplotype backgrounds among normal and mutant CFTR genes was observed. With exception of the D7S8 locus, the three most common mutations, delta F508, G542X and N1303K, were found on an identical haplotype background. In agreement with the observed linkage equilibrium between the Q1463Q and D7S8 loci, both alleles at the D7S8 locus were found on delta F508 CFTR genes. However, the G542X and N1303K mutations, which have been estimated to be at least 35000 years old, were found to be associated with a single allele at the D7S8 locus. Absence of recombination between the D7S8 and Q1463Q loci was also observed on normal CFTR genes with this haplotype background. At the Tn locus in intron 8, allele 9 known to result in very efficient splicing was associated with the most frequent mutations. At the M470V locus, located in a conserved region of the first nucleotide binding fold, the amino acid methionine was found to be associated with the frequent mutations, in particular with mutations located in one of the two nucleotide binding folds which are generally known as severe mutations with regard to exocrine pancreatic function. On mutant CFTR gene, this locus was in complete association with the centromeric D9 locus, in the absence of a complete association with the intervening loci.(ABSTRACT TRUNCATED AT 250 WORDS)

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34 Distribution of alleles at 10 polymorphic loci Locus Allele Normal Mutant Mutations XV2c KM19 D9 1 2 1 2 1 2 58 (0.492) 60 (0.508) 84 (0.622) 51 (0.378) 78 (0.586) 55 (0.414) 146 (0.918) 13 (0.082) 19(0.109) 156 (0.891) 15 (0.085) 161 (0.915) 1001 + llC/T Tn 115 (0.927) R 9 (0.073) 5 7 (0.057) 7 102 (0.836) 9 13 (0.107) M470V C 62 (0.496) R 63 (0.504) 1898+15 2T/A C 84(0.641) R 47 (0.359) T854T Q1463Q D7S8 C 82 (0.636) R 47 (0.364) C 90 (0.692) R 40 (0.308) 1 38 (0.317) 2 82 (0.683) 33 (0.192) 139 (0.808) 0 (0.000) 32 (0.190) 136 (0.810) 156 (0.902) 17 (0.098) 163 (0.926) 13 (0.074) 162 (0.926) 13 (0.074) 162 (0.931) 12 (0.069) 91 (0.569) 69 (0.431) E60X, 622-2A-C, A455E, AF508 (98.3%), 1717-1G-A, G542X, 0.479 63.54 G628R(G-C)/S1235R,2183AA-G, G970R, W1282X, N1303K p<10~ G458V, AI5O7, AF508 (1.7%), 1898 + 1G-C, E73OX, 3272-26A-G, W1310X, 4218insT, UA, UB, UC I336K, W401X, 2T2ldelll, Y1092X, 3659delC, S1251N: not included (5%) E60X, 622-2A-C, W401X, G458V, AF5O8 (1.6%), 1898+ 1G-C, -0.541 90.63 G628R(G-Q/S1235R, E730X, G970R, 3272-26A-G (50.0%), p<10" Y1092X, 3659delC, S1251N, W1310X, UB, UTC A455E, AI507, AF5O8 (98.4%), 1717- 1G-A, G542X, 2183AA-G, 3272-26A-G (50.0%), W1282X, N13O3K, 4218insT, UA 1336K, 2721delU: not included (1%) E60X, 622-2A-C, W401X, G458V, 1898 +1G-C, E730X, G970R, -0.541 90.46 Y1092X, 3659delC, S1251N, W1310X, UB, UC p<10" A455E, AI507, AF508, 1717- 1G-A, G542X, G628R(G-Q/S1235R, 2183AA-G, 3272-26A-G, W1282X, N13O3K, 4218insT, UA I336K, 2721delll: not included (1%) E60X, 622-2A-C, I336K, W401X, G458V, AI507, 1717- 1G-A, -0.726 155.94 1898 + 1G-C, G628R(G-C)/S1235R, 2183AA-G, E730X, 2721delll, p< 10" G970R, 3272-26A-G, Y1092X, 3659delC, S1251N, W1282X, W1310X, 4218insT, UA, UB, UC A455E, AF5O8, G542X, N13O3K E60X, 622-2A-C, I336K, W401X, G458V, AI507, 1717-1G-A, 1898 + 1G-C, G628R(G-C)/S1235R, 2183AA-G, E730X, 2721delll, G970R, 3272-26A-G, Y1092X, 3659delC, S1251N, W1282X, W1310X, 4218insT, UA, UB, UC A455E, AF5O8, G542X, N13O3K A455E, AI5O7, AF508, 1717-1G-A, G542X, G628R(G-Q/S1235R, 2183AA-G, 3272-26A-G, W1282X, N13O3K, 4218insT, UA E60X, 622-2A-C, W401X, G458V, 1898 + 1G-C, E730X, G970R, Y1092X, 3659delC, S1251N, W1310X, UB, UC 1336K, midclll: not included (1%) E60X, 622-2A-C, W401X, A455E, G458V, AF508 (99.2%), G542X, 1898 + 1G-C, 2183AA-G, E730X, G970R, Y1092X, 3659delC, S1251N, N1303K, W1310X, UB, UC AI507, AF5O8 (0.8%), 1717-1G-A, G628R(G-Q/S1235R, 3272-26A-G, W1282X, 4218insT, UA I336K, 2721delU: not included (1%) E60X, 622-2A-C, W401X, A455E, G458V, AF508 (99.2%), G542X, 1898+1G-C, 2183AA-G, E730X, G970R, Y1092X, 3659delC,S1251N, N13O3K, W1310X, UB, UC AI507, AF508 (0.8%), 1717-1G-A, G628R(G-C)/S1235R, 3272-26A-G, W1282X, 4218insT, UA 1336K, midelll: not included (1%) E60X, 622-2A-C, W401X, A455E, G458V, AF5O8 (99.2%), G542X, G628R(G-Q/S1235R, 2183AA-G, E730X, G970R, Y1092X, 3659delC, S1251N,N1303K, W1310X, UC AI507, AF5O8 (0.8%), 1717-1G-A, 1898 + 1G-C, 3272-26A-G, W1282X, 4218insT 1336K, 2721del11. Login to comment
35 UA, UB: not included (2%) A455E, AF508 (61.2%), 1717-1G-A (66.7%), G542X, G628R(G-C)/S1235R, 3272-26A-G, S1251N, W1282X, W1310X E60X, 622-2A-C, W401X, G458V, AJ507, AF5O8 (38.8%), 1717- 1G-A (33.3%), 1898 +1G-C, 2183AA-G, E730X, G970R, Y1092X, 3659delC, N13O3K, 4218insT, UA, UB, UC 1336K, 2721delll: not included (1%) -0.694 139.81 p<10~ 0.452 60.83 p<10" 0.355 38.77 p<10" 0.360 39.44 p<10~7 0.314 29.91 0.250 17.54 p<10"4 The observed CFTR genes associated with a particular allele are given, proportions are given between brackets. Not all the mutations were informative for each of the tested loci, which were therefore not included. For the Tn locus the standardized linkage disequilibrium coefficient was calculated for the group of the non-T9 alleles and the T9 alleles. Login to comment
72 Extragenic (XV2c/KM19/D9) haplotypes Haplotype Normal Mutant Mutations 111 211 121 112 212 122 222 23 (0.204) 43 (0.381) 2 (0.018) 6 (0.053) 0 (0.000) 22 (0.195) 17 (0.150) 4 (0.026) E60X, 622-2A-C, G970R 6 (0.039) G458V, 1898+1G-C, E73OX, W1310X, UB, UC 0 (0.000) 3 (0.019) AF5O8 (1.7%), G628R(G-Q/S1235R 1 (0.006) 3272-26A-G (50.0%) 134 (0.870) A455E, AF508 (96.5%), 1717-1G-A, G542X, 2183AA-G, W1282X, N13O3K 6 (0.039) AI507, AF508 (1.8%), 3272-26A-G (50.0%), 4218insT, UA p<10"3 p<10"7 p<10~7 p<10"2 The observed CFTR genes associated with a particular haplotype are given, proportions are given between brackets. Login to comment
103 CFTR haplocypes I II ma mb rv V VI Haplotype C7RCCC 211C7RCCC1 111C7RCCC1 /11C7RCCC1 211C7RCCC2 111C7RCCC2 /11C7RCCC2 122C7RCCC2 121C7RCCC2 C5CRRR 122C5CRRR1 211C5CRRR2 222C5CRRR2 C7CRRR 122C7CRRR1 222C7CRRR1 212C7CRRR1 122C7CRRR2 222C7CRRR2 122C7CRRR/ C9CRRR 211C9CRRR1 R9CCCC 122R9CCCC1 222R9CCCC1 /22R9CCCC1 112R9CCCC1 122R9CCCC2 222R9CCCC2 112R9CCCC2 R9CRRR 122R9CRRR1 C7CRRC 112C7CRRC1 112C7CRRC2 C9CRRC 211C9CRRC1 C7CCCC 211C7CCCC1 222C7CCCC1 122C7CCCC2 C7RCCR 211C7RCCR2 Normal 0.524 (43) 0.085 0.073 0.195 0.146 0.012 0.012 0.049 (4) 0.012 0.024 0.012 0.220 (18) 0.024 0.073 0.000 0.073 0.049 0.012 (1) 0.012 0.073 (6) 0.000 0.000 0.000 0.061 0.012 0.000 0.000 (0) 0.000 0.061 (5) 0.000 0.061 0.012 (1) 0.012 0.037 (3) 0.012 0.024 0.000 0.012 (1) 0.012 Mutant 0.080 (IS) 0.005 0.000 0.020 0.015 0.020 0.020 0.000 0.000 0.000 (0) 0.000 0.000 0.000 Mutations p<10"7 W1310X S1251N G458V, E730X, UC E60X, 622-2A-C, G970R W401X, Y1092X, 3659delC 0.055 (9) p<10"2 0.017 0.005 0.005 0.008 0.010 0.010 0.000 (0) 0.000 1717-1G-A (66.7%) 50.0% of 3272-26A-G 50.0% of 3272-26A-G 1717-1G-A(33.3%) AI507, 4218insT W1282X 0.819 (130) p<10~7 0.466 0.007 0.010 0.007 0.312 0.007 0.007 0.005 (1) 0.005 0.005 (1) 0.005 0.000 0.000 (0) 0.000 0.010 (2) 0.000 0.000 0.010 0.005 (1) 0.005 56.7% of AF508, G542X 1% of AF5O8 A455E 1% of AF5O8 38.1% of AF508, N1303K 1.0% of AF5O8 1% of AF508 1% of AF508 G628R(G-Q/S1235R 2183AA-G 1898+1G-C The proportion of CFTR genes associated with a particular haplotype, and the mutations found to be associated with that haplotype are given. Login to comment

[hide] Detection of 98.5% of the mutations in 200 Belgian... Genomics. 1993 Dec;18(3):693-7. Cuppens H, Marynen P, De Boeck C, Cassiman JJ
Detection of 98.5% of the mutations in 200 Belgian cystic fibrosis alleles by reverse dot-blot and sequencing of the complete coding region and exon/intron junctions of the CFTR gene.
Genomics. 1993 Dec;18(3):693-7., [PMID:7508414]

Abstract [show]
We have previously shown that about 85% of the mutations in 194 Belgian cystic fibrosis alleles could be detected by a reverse dot-blot assay. In the present study, 50 Belgian chromosomes were analyzed for mutations in the cystic fibrosis transmembrane conductance regulator gene by means of direct solid phase automatic sequencing of PCR products of individual exons. Twenty-six disease mutations and 14 polymorphisms were found. Twelve of these mutations and 3 polymorphisms were not described before. With the exception of one mutant allele carrying two mutations, these mutations were the only mutations found in the complete coding region and their exon/intron boundaries. The total sensitivity of mutant CF alleles that could be identified was 98.5%. Given the heterogeneity of these mutations, most of them very rare, CFTR mutation screening still remains rather complex in our population, and population screening, whether desirable or not, does not appear to be technically feasible with the methods currently available.

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No. Sentence Comment
40 The W1310X mutation and one 2184delA (plus A --~ G at 2183) allele were found in a patient from Turkish descent. Login to comment
43 TABLE 1 Mutations (and Their Frequencies) Identified in This Study Predicted amino Mutation Nucleotide change~ acid change Location Frequencyb Reference E60X G --~ T at 310 (TAGATAGCT) Glu --~ Stop at 60 Malone et al. in (21); this study G --~ A at 482 (GAACACTCT) (8) A --~ C at 622-2 (TTTTCGACT) This study T --~ A at 1139 (AAAAAATTC) This study G --~ A at 1335 (TCTGAGAGG) This study C --~ A at 1496 (TTGGAGGTT) (14) G -~ T at 1505 (GCTGTATCC) (6) Deletion of ATC from 1651 (14); Schwarz et al. (TATC_TTTG) in (21) Deletion of CTT from 1653 145 (13) (TCAT_TGGT) G --~ A at 1717-1 (AATAAGACA) G --~ T at 1756 (TCTTTGAGA) G --~ C at 1898 + 1 (AAAGCTATG) G --~ C at 2014 (TTATCGGAC Deletion of A at 2184; A --~ G at 2183 (AAAAG CAAT) G --~ T at 2320 (TGATTAGCC Deletion of 11 nucleotides from 2721 (TGCT_TAGT) G --~ C at 3040 (AGCACGTAC A --~ G at 3272-26 (TGCAGTGTT) C --~ A at 3408 (TGTAACTGT) Deletion of C at 3659 (CCTA_CAAG) T --~ G at 3837 (TAAGGCCTG G --* A at 3884 (AAGAATACT G --~ A at 3978 (AGTGAAGGA' C --~ G at 4041 (AAAAGTTGG G -~ A at 4061 (CAGTAGAGT Insertion of T after 4218 (CAGTTAAGG) R117H 622-2A --~ C I336K W401X A455E G458V AI507 AF508 1717-1G -~ A G542X 1898+ 1G-~C G628R(G -~ C) 2184delA plus A -~ G at 2183 E730X 2721de111 G970R 3272-26A --~ G Y1092X 3659delc $1235R $1251N W1282X N1303K W1310X 4218insT Exon 3 2 (1.0%) Arg --~ His at 117 Exon 4 c 3' splice signal Intron 4 1 (0.5%) Ile -~ Lys at 336 Exon 7 1 (0.5%) Trp --~ Stop at 401 Exon 8 2 (1.0%) Ala --~ Glu at 455 Exon 9 2 (1.0%) Gly --* Val at 458 Exon 9 1 (0.5%) Deletion of Ile 507 Exon 10 1 (0.5%) Deletion of Phe 508 Exon 10 (72.5%) 3' splice signal Intron 10 5 (2.5%) Gly --* Stop at 542 Exon 11 11 (5.5%) 5' splice signal Intron 12 1 (0.5%) Gly -~ Arg at 628 Exon 13 1 (0.5%) Frameshift Exon 13 2 (1.0%) Glu --~ Stop at 730 Exon 13 1 (0.5%) Frameshift Exon 14a I (0.5%) Gly --~ Arg at 970 Exon 15 1 (0.5%) 5' splice signal? Login to comment
48 The G628R(G --~ C) and $1235R mutations were found on a single allele; the W1310X allele and one 2184delA (plus A --~ G at 2183) allele were found on a CFTR gene from Turkish descent. Login to comment
39 The W1310X mutation and one 2184delA (plus A --~ G at 2183) allele were found in a patient from Turkish descent. Login to comment
42 TABLE 1 Mutations (and Their Frequencies) Identified in This Study Predicted amino Mutation Nucleotide change~ acid change Location Frequencyb Reference E60X G --~ T at 310 (TAGATAGCT) Glu --~ Stop at 60 Malone et al. in (21); this study G --~ A at 482 (GAACACTCT) (8) A --~ C at 622-2 (TTTTCGACT) This study T --~ A at 1139 (AAAAAATTC) This study G --~ A at 1335 (TCTGAGAGG) This study C --~ A at 1496 (TTGGAGGTT) (14) G -~ T at 1505 (GCTGTATCC) (6) Deletion of ATC from 1651 (14); Schwarz et al. (TATC_TTTG) in (21) Deletion of CTT from 1653 145 (13) (TCAT_TGGT) G --~ A at 1717-1 (AATAAGACA) G --~ T at 1756 (TCTTTGAGA) G --~ C at 1898 + 1 (AAAGCTATG) G --~ C at 2014 (TTATCGGAC Deletion of A at 2184; A --~ G at 2183 (AAAAG CAAT) G --~ T at 2320 (TGATTAGCC Deletion of 11 nucleotides from 2721 (TGCT_TAGT) G --~ C at 3040 (AGCACGTAC A --~ G at 3272-26 (TGCAGTGTT) C --~ A at 3408 (TGTAACTGT) Deletion of C at 3659 (CCTA_CAAG) T --~ G at 3837 (TAAGGCCTG G --* A at 3884 (AAGAATACT G --~ A at 3978 (AGTGAAGGA' C --~ G at 4041 (AAAAGTTGG G -~ A at 4061 (CAGTAGAGT Insertion of T after 4218 (CAGTTAAGG) R117H 622-2A --~ C I336K W401X A455E G458V AI507 AF508 1717-1G -~ A G542X 1898+ 1G-~C G628R(G -~ C) 2184delA plus A -~ G at 2183 E730X 2721de111 G970R 3272-26A --~ G Y1092X 3659delc $1235R $1251N W1282X N1303K W1310X 4218insT Exon 3 2 (1.0%) Arg --~ His at 117 Exon 4 c 3' splice signal Intron 4 1 (0.5%) Ile -~ Lys at 336 Exon 7 1 (0.5%) Trp --~ Stop at 401 Exon 8 2 (1.0%) Ala --~ Glu at 455 Exon 9 2 (1.0%) Gly --* Val at 458 Exon 9 1 (0.5%) Deletion of Ile 507 Exon 10 1 (0.5%) Deletion of Phe 508 Exon 10 (72.5%) 3' splice signal Intron 10 5 (2.5%) Gly --* Stop at 542 Exon 11 11 (5.5%) 5' splice signal Intron 12 1 (0.5%) Gly -~ Arg at 628 Exon 13 1 (0.5%) Frameshift Exon 13 2 (1.0%) Glu --~ Stop at 730 Exon 13 1 (0.5%) Frameshift Exon 14a I (0.5%) Gly --~ Arg at 970 Exon 15 1 (0.5%) 5' splice signal? Login to comment
47 The G628R(G --~ C) and $1235R mutations were found on a single allele; the W1310X allele and one 2184delA (plus A --~ G at 2183) allele were found on a CFTR gene from Turkish descent. Login to comment

[hide] CFTR gene analysis in Latin American CF patients: ... J Cyst Fibros. 2007 May;6(3):194-208. Epub 2006 Sep 11. Perez MM, Luna MC, Pivetta OH, Keyeux G
CFTR gene analysis in Latin American CF patients: heterogeneous origin and distribution of mutations across the continent.
J Cyst Fibros. 2007 May;6(3):194-208. Epub 2006 Sep 11., [PMID:16963320]

Abstract [show]
BACKGROUND: Cystic Fibrosis (CF) is the most prevalent Mendelian disorder in European populations. Despite the fact that many Latin American countries have a predominant population of European-descent, CF has remained an unknown entity until recently. Argentina and Brazil have detected the first patients around three decades ago, but in most countries this disease has remained poorly documented. Recently, other countries started publishing their results. METHODS: We present a compilation and statistical analysis of the data obtained in 10 countries (Argentina, Brazil, Chile, Colombia, Costa Rica, Cuba, Ecuador, Mexico, Uruguay and Venezuela), with a total of 4354 unrelated CF chromosomes studied. RESULTS: The results show a wide distribution of 89 different mutations, with a maximum coverage of 62.8% of CF chromosomes/alleles in the patient's sample. Most of these mutations are frequent in Spain, Italy, and Portugal, consistent with the origin of the European settlers. A few African mutations are also present in those countries which were part of the slave trade. New mutations were also found, possibly originating in America. CONCLUSION: The profile of mutations in the CFTR gene, which reflects the heterogeneity of its inhabitants, shows the complexity of the molecular diagnosis of CF mutations in most of the Latin American countries.

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Sentences [show]
No. Sentence Comment
78 At least another 38 mutations have been searched for, but none of them were found in the CF patients from Latin America: p.E60X, p.Y122X, p.G178R, p.G330X, p.R347H, p.R352Q, p.S364P, p.A455E, p.Q493X, p.V520F, p.C524X, p.R560T, p.Y563D, p.P574H, p.K710X, p.Q890X, p. R1158X, p.S1196X, p.S1255X, p.D1270N, p.W1310X, p. W1316X, c.405+1G-A, c.444delA, c.556delA, c.574delA, c.1677delTA, c.2043delG, c.2307insA, c.2909delT, c.3120G-A, c.3358delAC, c.3662delA, c.3750delAG, c.3791delC, c.3821delT, c.3849+4A-G, c.3905insT. Login to comment