ABCMdb

ABCA1 p.Arg1680Trp

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Publications

PMID: 20800056 [PubMed] Berge KE et al: "Mutations in APOA-I and ABCA1 in Norwegians with low levels of HDL cholesterol."

No. Sentence Comment

77 However, an arginine at position 1680 appears to be important for the normal function of ABCA1, as demonstrated by the observation that a Japanese Tangier disease patient was homozygous for mutation R1680W [20]. Login to comment

PMID: 16704350 [PubMed] Brunham LR et al: "Variations on a gene: rare and common variants in ABCA1 and their impact on HDL cholesterol levels and atherosclerosis."

No. Sentence Comment

550 However, a subset of mutations are associated with greater than 50% of control HDL levels, specifically T929I, A947V, R1680W, and W590S. Login to comment
555 Since a complete loss of function allele would be expected to result in a 50% reduction in HDL levels, a greater than 50% reduction in HDL is most likely explained by a dominant negative allele, in which TABLE 3 Patient phenotypes associated with heterozygous ABCA1 mutations Mutation HDL (mmol/L) HDL (% of control) Number of patients M1091T 0.48 ± 0.5 30 ± 30 4 G1216V 0.50 40 1 R2144X 0.56 ± 0.2 41 ± 18 12 R282X 0.52 41 1 R909X 0.59 ± 0.3 42 ± 19 5 K776N 0.55 ± 0.1 47 ± 5 2 R587W 0.61 ± 0.1 47 ± 8 7 S364C 0.60 48 1 P1065S 0.80 51 1 c-ter deletion 0.75 53 1 N1800H - 56.5 33 P85L 0.72 ± 0.4 57 ± 33 5 Del693L 0.79 ± 0.2 57 ± 15 8 D1289N 0.80 ± 0.1 59 ± 12 4 R2081W 0.80 ± 0.1 59 ± 12 4 2203X 0.80 ± 0.2 59 ± 20 4 DelED1893,4 0.77 ± 0.2 59 ± 18 8 2145X 0.82 ± 0.1 59 ± 9 4 A1046D 0.70 ± 0.1 60 ± 8 2 Q597R 0.82 ± 0.1 60 ± 5 5 C1477R 0.82 ± 0.2 61 ± 15 9 IVS25 + 1G > C 0.78 ± 0.1 62 ± 12 4 D1099Y 0.83 ± 0.3 63 ± 21 5 1552X 1.00 64 1 F2009S 0.82 ± 0.2 64 ± 19 6 R587W 0.86 ± 0.1 65 ± 17 2 R1068H 0.90 ± 0.3 67 ± 26 9 N935S 1.00 ± 0.3 74 ± 16 7 T929I 1.01 ± 0.2 76 ± 7 8 1284X 1.11 ± 0.2 83 ± 14 5 A937V 1.15 ± 0.6 85 ± 28 2 R1680W 1.22 ± 0.2 87 ± 17 3 635X 1.24 ± 0.5 90 ± 32 7 W590S 1.32 ± 0.6 103 ± 46 15 the mutant protein actually interferes with the activity of the remaining wild-type protein. Login to comment

PMID: 16429166 [PubMed] Brunham LR et al: "Accurate prediction of the functional significance of single nucleotide polymorphisms and mutations in the ABCA1 gene."

No. Sentence Comment

48 This SNP has been reported to be associated with decreased HDL cholesterol and increased severity of atherosclerosis in Table 1. subPSEC Scores and Probability of Functional Impairment (Pdeleterious) for ABCA1 Mutations and SNPs Mutations SNPs Variant SubPSEC Pdeleterious Variant subPSEC Pdeleterious P85L À4.62 0.83 R219K À0.57 0.08 H160F À2.79 0.45 V399A À2.26 0.32 R230C À4.27 0.78 V771M À2.86 0.46 A255T À1.81 0.23 T774P À1.99 0.27 E284K À2.34 0.34 K776N À3.53 0.63 Y482C À4.21 0.77 V825I À1.06 0.13 R587W À6.04 0.95 I883M À1.38 0.17 W590S À5.19 0.9 E1172D À1.96 0.26 W590L À4.48 0.82 R1587K À0.58 0.08 Q597R À7.15 0.98 S1731C À4.21 0.77 T929I À4.29 0.78 N935H À8.54 1 N935S À7.53 0.99 A937V À6.6 0.97 A1046D À7.52 0.99 M1091T À3.56 0.64 D1099Y À6.09 0.96 D1289N À2.48 0.37 L1379F À3.81 0.69 C1477R À5.44 0.92 S1506L À5.17 0.9 N1611D À5.69 0.94 R1680W À6.02 0.95 V1704D À3.21 0.55 N1800H À4.23 0.77 R1901S À5.06 0.89 F2009S À2.73 0.43 R2081W À8.08 0.99 P2150L À2.88 0.47 Q2196H À2.74 0.43 DOI: 10.1371/journal.pgen.0010083.t001 PLoS Genetics | www.plosgenetics.org December 2005 | Volume 1 | Issue 6 | e83 0740 Accurate Prediction of ABCA1 Variants Synopsis A major goal of human genetics research is to understand how genetic variation leads to differences in the function of genes. Login to comment

PMID: 15026428 [PubMed] Selva DM et al: "The ATP-binding cassette transporter 1 mediates lipid efflux from Sertoli cells and influences male fertility."

No. Sentence Comment

231 Children of TD fathers TD Patient Mutation Father`s Age Number of Children Youngest Child`s Age Father-Child Age Difference Reference years years years TD1 (III:01) C1477R, splice 43 1 6 36 (17) TD1 (II:5) G1764del-635X 63 2 21 42 (16) TD2 (II:4) 3Ј del-1834X 52 2 Ͻ14 Ͼ38 (16) TD3 (II.4) N935S 66 3 28 38 (16) TD5 (III:4) A877V, W530S 52 1 31 21 (59) II-2 1,284X 62 4 21 41 (60) P R1680W 48 3 5 43 (61) TD, Tangier disease. Login to comment
232 Children of TD fathers TD Patient Mutation Father`s Age Number of Children Youngest Child`s Age Father-Child Age Difference Reference years years years TD1 (III:01) C1477R, splice 43 1 6 36 (17) TD1 (II:5) G1764del-635X 63 2 21 42 (16) TD2 (II:4) 3 del-1834X 52 2 14 38 (16) TD3 (II.4) N935S 66 3 28 38 (16) TD5 (III:4) A877V, W530S 52 1 31 21 (59) II-2 1,284X 62 4 21 41 (60) P R1680W 48 3 5 43 (61) TD, Tangier disease. Login to comment

PMID: 12763760 [PubMed] Singaraja RR et al: "Efflux and atherosclerosis: the clinical and biochemical impact of variations in the ABCA1 gene."

No. Sentence Comment

83 TABLE 2. Conservation of Amino Acid Residues Mutated in Humans Mutation H. sapiens M. musculus G. gallus D. melanogaster C. elegans P85L P P P ⅐ ⅐ ⅐ P R230C R R R P G A255T A A S ⅐ ⅐ ⅐ ⅐ ⅐ ⅐ R587W R R R ⅐ ⅐ ⅐ ⅐ ⅐ ⅐ W590S W W W R Q Q597R Q Q Q Q Q ⌬L693 L L L L L T929I T T T T T N935S/H N N N N N A937V A A A A A A1046D A A A A A M1091T M M M M M D1099Y D D D D D D1289L/N D D D D D C1477R C C C ⅐ ⅐ ⅐ ⅐ ⅐ ⅐ S1506L S S S ⅐ ⅐ ⅐ ⅐ ⅐ ⅐ N1611D N N N N S R1680W R R R R R N1800H N N N A W F2009S F F F I M R2081W R R R R R P2150L P P P R N ⌬E1893 E E E D S ⌬D1894 D D D D D Twenty-three of 24 (95.83%) amino acids affected by mutations are conserved with G. gallus, reflecting the functional importance of these residues. Login to comment
114 Patients homozygous for the mutations A255T and R1680W show HDL-C levels that are greater than 10% of age-and sex-matched population controls. Login to comment
122 This is indeed the case in heterozygous patients harboring mutations A255T, W590S, T929I, R1680W, and A937V, who all show HDL-C levelsϾ75% of normal age-and sex-matched controls. Login to comment
75 TABLE 2. Conservation of Amino Acid Residues Mutated in Humans Mutation H. sapiens M. musculus G. gallus D. melanogaster C. elegans P85L P P P ዼ ዼ ዼ P R230C R R R P G A255T A A S ዼ ዼ ዼ ዼ ዼ ዼ R587W R R R ዼ ዼ ዼ ዼ ዼ ዼ W590S W W W R Q Q597R Q Q Q Q Q èc;L693 L L L L L T929I T T T T T N935S/H N N N N N A937V A A A A A A1046D A A A A A M1091T M M M M M D1099Y D D D D D D1289L/N D D D D D C1477R C C C ዼ ዼ ዼ ዼ ዼ ዼ S1506L S S S ዼ ዼ ዼ ዼ ዼ ዼ N1611D N N N N S R1680W R R R R R N1800H N N N A W F2009S F F F I M R2081W R R R R R P2150L P P P R N èc;E1893 E E E D S èc;D1894 D D D D D Twenty-three of 24 (95.83%) amino acids affected by mutations are conserved with G. gallus, reflecting the functional importance of these residues. Login to comment
106 Patients homozygous for the mutations A255T and R1680W show HDL-C levels that are greater than 10% of age-and sex-matched population controls. Login to comment

PMID: 12840658 [PubMed] Miller M et al: "Genetics of HDL regulation in humans."

No. Sentence Comment

66 TD 1591 T/C 11 V399A extracellular [68] TD 1979 (110bpAlu Ins) 12 truncated truncation [60] TD/FHA 2154 C/T 14 R587W extracellular [67,69] TD 2164 G/C 14 W590S extracellular [61] TD 2185 A/G 14 Q597R extracellular [59,67] TD 2219 G/del 14 truncated, 635X truncated [60,61] FHA 2472-2474 3bp del 15 Del L693 TM domain #3 [59] phosphorylation 2706 G/A 16 V771M extracellular [68] 2715 A/C 16 T774P extracellular [68] 2723 G/C 16 K776N extracellular [68] 2868 G/A 17 V825I TM domain #6 [67,68] TD/FHA 3044 A/G 18 I883M cytoplasmic [68] phosphorylat site FHA 3120 C/T 19 R909X truncation [63,71] TD 3181 C/T 19 T929I cytoplasmic [62] TD 3199 A/G 19 N935S Walker A [61] TD 3205 C/T 19 A937V Walker A [61] TD 3532 C/A 22 A1046D cytoplasmic, Walker A/B [70] FHA 3667 T/C 23 M1091T cytoplasmic [63] 3690 G/T 23 D1099Y cytoplasmic [9] TD 3738 2bp del 23 1145X truncation [66] FHA 3911 G/C 24 E1172D linker/cytoplasmic [68] FHA 4242 4bp del 27 1297X truncated [64] TD 4260 G/A 27 D1289N linker cytoplasm [64,65] TD 4824 T/C 31 C1477R extracellular [59] TD 4912 C/T 32 S1506L extracellular loop #2 [71] TD 5025 ins A 34 A1544S?1552X truncation [70] 5059 T/C 34 I1555T extracellular loop #2 [67] 5155 G/A 35 R1587K extracellular loop #2 [68] FHA 5226 A/G 36 N1611D extracellular loop #2 [75..] 5338 T/C 36 L1648P extracellular loop #2 [67] TD 5443 C/T 37 R1680W cytoplasmic [74.] Login to comment

PMID: 12111371 [PubMed] Ishii J et al: "Clinical variant of Tangier disease in Japan: mutation of the ABCA1 gene in hypoalphalipoproteinemia with corneal lipidosis."

No. Sentence Comment

11 We have documented here a clinical variant of TD in a Japanese patient who manifested corneal lipidosis and premature coronary artery disease as well as an almost complete absence of HDL-cholesterol, by identifying a novel homozygous ABCA1 mutation (R1680W). Login to comment
22 We tested for the observed R1680W mutation in the proband and relatives using the PCR-restriction fragment length polymorphism (RFLP) method, by amplifying a 351-bp fragment of exon 37 with primers 5Ј-TTGACTGTTGCCCCTTATCTA-3Ј and 5Ј-ATGCCCCTGCCAACTTTACC-3Ј and digesting the product with BsrBI. Login to comment
37 Detection of the R1680W mutation in the proband`s family by polymerase chain reaction (PCR)-restriction fragment length polymorphism. Login to comment