ABCMdb

ABCA4 p.Ala1598Gly

ClinVar:	c.4793C>A , p.Ala1598Asp ? , not provided
Predicted by SNAP2:	C: N (78%), D: D (80%), E: N (72%), F: N (61%), G: N (87%), H: N (82%), I: N (82%), K: N (78%), L: N (72%), M: N (78%), N: N (82%), P: N (72%), Q: N (78%), R: N (78%), S: N (93%), T: N (87%), V: N (82%), W: D (66%), Y: N (66%),
Predicted by PROVEAN:	C: N, D: N, E: N, F: N, G: N, H: N, I: N, K: N, L: N, M: N, N: N, P: N, Q: N, R: N, S: N, T: N, V: N, W: N, Y: N,

[switch to compact view]
Comments [show]

None has been submitted yet.

Publications
[hide] Identification of Genetic Defects in 33 Probands w... PLoS One. 2015 Jul 10;10(7):e0132635. doi: 10.1371/journal.pone.0132635. eCollection 2015. Xin W, Xiao X, Li S, Jia X, Guo X, Zhang Q
Identification of Genetic Defects in 33 Probands with Stargardt Disease by WES-Based Bioinformatics Gene Panel Analysis.
PLoS One. 2015 Jul 10;10(7):e0132635. doi: 10.1371/journal.pone.0132635. eCollection 2015., [PMID:26161775]

Abstract [show]
Stargardt disease (STGD) is the most common hereditary macular degeneration in juveniles, with loss of central vision occurring in the first or second decade of life. The aim of this study is to identify the genetic defects in 33 probands with Stargardt disease. Clinical data and genomic DNA were collected from 33 probands from unrelated families with STGD. Variants in coding genes were initially screened by whole exome sequencing. Candidate variants were selected from all known genes associated with hereditary retinal dystrophy and then confirmed by Sanger sequencing. Putative pathogenic variants were further validated in available family members and controls. Potential pathogenic mutations were identified in 19 of the 33 probands (57.6%). These mutations were all present in ABCA4, but not in the other four STGD-associated genes or in genes responsible for other retinal dystrophies. Of the 19 probands, ABCA4 mutations were homozygous in one proband and compound heterozygous in 18 probands, involving 28 variants (13 novel and 15 known). Analysis of normal controls and available family members in 12 of the 19 families further support the pathogenicity of these variants. Clinical manifestation of all probands met the diagnostic criteria of STGD. This study provides an overview of a genetic basis for STGD in Chinese patients. Mutations in ABCA4 are the most common cause of STGD in this cohort. Genetic defects in approximately 42.4% of STGD patients await identification in future studies.

Comments [show]

None has been submitted yet.

Sentences [show]
No. Sentence Comment
69 (Continued) Patient Nucleotide Amino Acid State Computational Prediction Allele Frequency in Reported ID Change Change P/SS Proven SIFT 1000G EVS ExAC NC RC c.5196 +1G>A Splicing defect Het SSA NA NA NA NA 3/49858 - 0/456 Allikmets et al. 1997; Wiszniewski et al. 2005 QT1317 c.5646G>A p.M1882I Het PoD D D NA NA 3/121340 - 0/456 Zernant et al. 2011 c.4622T>C p.L1541P Het PrD D D NA NA NA 0/192 0/456 Novel MD19 c.4793C>G p.A1598G het PoD D N NA 0.0001 NA - 0/456 Maugeri et al. 2000; Cideciyan et al. 2009; Burke et al. 2010 c.634C>T p.R212C het D D D NA 0.0002 14/ 120056 - 0/456 Gerber et al.1998; Thiadens et al. 2012 The following abbreviations are used: P/SS, Polyphen-2/Splice Site Prediction; 1000G, 1000 Genomes; EVS, Exome Variant Server; ExAC, Exome Aggregation Consortium; Het, heterozygous; Hom, homozygous; NC, normal control; RC, relative control; PrD, probably damaging; PoD, possibly damaging; B, benign; SSA, splicing site abolished; N, neutral; D, damaging; and NA, not applicable;-, not done. Login to comment