ABCA4 p.Lys2160Arg
| ClinVar: |
c.6479A>G
,
p.Lys2160Arg
?
, not provided
|
| Predicted by SNAP2: | A: D (63%), C: D (66%), D: D (59%), E: D (53%), F: D (71%), G: D (59%), H: D (53%), I: D (63%), L: D (63%), M: D (63%), N: N (66%), P: D (63%), Q: N (57%), R: N (78%), S: N (57%), T: N (61%), V: D (63%), W: D (80%), Y: D (63%), |
| Predicted by PROVEAN: | A: D, C: D, D: D, E: D, F: D, G: D, H: D, I: D, L: D, M: D, N: D, P: D, Q: N, R: N, S: D, T: D, V: D, W: D, Y: D, |
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[hide] An analysis of ABCR mutations in British patients ... Invest Ophthalmol Vis Sci. 2000 Jan;41(1):16-9. Papaioannou M, Ocaka L, Bessant D, Lois N, Bird A, Payne A, Bhattacharya S
An analysis of ABCR mutations in British patients with recessive retinal dystrophies.
Invest Ophthalmol Vis Sci. 2000 Jan;41(1):16-9., [PMID:10634594]
Abstract [show]
PURPOSE: Several reports have shown that mutations in the ABCR gene can lead to Stargardt disease (STGD)/fundus flavimaculatus (FFM), autosomal recessive retinitis pigmentosa (arRP), and autosomal recessive cone-rod dystrophy (arCRD). To assess the involvement of ABCR in these retinal dystrophies, the gene was screened in a panel of 70 patients of British origin. METHODS: Fifty-six patients exhibiting the STGD/FFM phenotype, 6 with arRP, and 8 with arCRD, were screened for mutations in the 50 exons of the ABCR gene by heteroduplex analysis and direct sequencing. Microsatellite marker haplotyping was used to determine ancestry. RESULTS: In the 70 patients analyzed, 31 sequence changes were identified, of which 20 were considered to be novel mutations, in a variety of phenotypes. An identical haplotype was associated with the same pair of in-cis alterations in 5 seemingly unrelated patients and their affected siblings with STGD/FFM. Four of the aforementioned patients were found to carry three alterations in the coding sequence of the ABCR gene, with two of them being in-cis. CONCLUSIONS: These results suggest that ABCR is a relatively polymorphic gene. Because putative mutations have been identified thus far only in 25 of 70 patients, of whom only 8 are compound heterozygotes, a large number of mutations have yet to be ascertained. The disease haplotype seen in the 5 patients carrying the same "complex" allele is consistent with the presence of a common ancestor.
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45 Neither of these putative TABLE 1. List of Mutations Found in 70 Patients of British Origin Nucleotide Change Amino Acid Change No. of Patients (/70) Phenotype No. of Controls (/96) G161A Cys-54-Tyr 1 STG/FFM NF A286G Asn-96-Asp 1 STG/FFM NF A286C Asn-96-His 1 STG/FFM NF A466G Ile-156-Val 1 STG/FFM NF C1220T Ala-407-Val 6 STG/FFM, arCRD NF T1271C Val-424-Ala 2 STG/FFM, arRP NF C1335G Ser-445-Arg 1 STG/FFM NF C1804T Arg-602-Trp 1 STG/FFM NF C2337A Cys-779-Ter 1 STG/FFM NF *G2588C Gly-863-Ala 5 STG/FFM 2/176 3392delC 1147 Ter 1 STG/FFM NF T4286C Val-1429-Ala 1 STG/FFM NF 4774-2A3C Splice acceptor 2 STG/FFM NF †C4918T Arg-1640-Trp 1 STG/FFM NF C5107G Gln-1703-Lys 1 STG/FFM NF 5161delAC Frameshift 1 STG/FFM NF C5337G Tyr-1779-Ter 1 STG/FFM NF C6088T Arg-2030-Ter 1 arCRD NF 6282ϩ7G3A Splice donor 1 STG/FFM NF G6449A Cys-2150-Tyr 2 arCRD NF A6479G Lys-2160-Arg 1 STG/FFM NF * Independently reported by Allikmets et al.6 † Independently reported by Rozet et al.8 NF, not found in 96 ethnically matched control individuals.
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ABCA4 p.Lys2160Arg 10634594:45:867
status: NEW