ABCA4 p.Asp1613Asn
Predicted by SNAP2: | A: N (61%), C: N (57%), E: N (87%), F: D (59%), G: N (66%), H: N (61%), I: N (53%), K: N (66%), L: D (53%), M: D (53%), N: N (72%), P: N (61%), Q: N (66%), R: N (57%), S: N (78%), T: N (82%), V: N (57%), W: D (71%), Y: N (53%), |
Predicted by PROVEAN: | A: D, C: D, E: N, F: D, G: D, H: N, I: D, K: D, L: D, M: D, N: N, P: D, Q: N, R: D, S: N, T: D, V: D, W: D, Y: D, |
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[hide] Next-generation sequencing applied to a large Fren... Orphanet J Rare Dis. 2015 Jun 24;10:85. doi: 10.1186/s13023-015-0300-3. Boulanger-Scemama E, El Shamieh S, Demontant V, Condroyer C, Antonio A, Michiels C, Boyard F, Saraiva JP, Letexier M, Souied E, Mohand-Said S, Sahel JA, Zeitz C, Audo I
Next-generation sequencing applied to a large French cone and cone-rod dystrophy cohort: mutation spectrum and new genotype-phenotype correlation.
Orphanet J Rare Dis. 2015 Jun 24;10:85. doi: 10.1186/s13023-015-0300-3., [PMID:26103963]
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BACKGROUND: Cone and cone-rod dystrophies are clinically and genetically heterogeneous inherited retinal disorders with predominant cone impairment. They should be distinguished from the more common group of rod-cone dystrophies (retinitis pigmentosa) due to their more severe visual prognosis with early central vision loss. The purpose of our study was to document mutation spectrum of a large French cohort of cone and cone-rod dystrophies. METHODS: We applied Next-Generation Sequencing targeting a panel of 123 genes implicated in retinal diseases to 96 patients. A systematic filtering approach was used to identify likely disease causing variants, subsequently confirmed by Sanger sequencing and co-segregation analysis when possible. RESULTS: Overall, the likely causative mutations were detected in 62.1 % of cases, revealing 33 known and 35 novel mutations. This rate was higher for autosomal dominant (100 %) than autosomal recessive cases (53.8 %). Mutations in ABCA4 and GUCY2D were responsible for 19.2 % and 29.4 % of resolved cases with recessive and dominant inheritance, respectively. Furthermore, unexpected genotype-phenotype correlations were identified, confirming the complexity of inherited retinal disorders with phenotypic overlap between cone-rod dystrophies and other retinal diseases. CONCLUSIONS: In summary, this time-efficient approach allowed mutation detection in the most important cohort of cone-rod dystrophies investigated so far covering the largest number of genes. Association of known gene defects with novel phenotypes and mode of inheritance were established.
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No. Sentence Comment
100 Np Highly - - - Novel CIC05853 simplex + ABC4A NM_000350.2 Ho 22 c.3259G>A p.E1087K Np Highly Prd D Dc (Allikmets et al. 1997) (rs61751398) [81] CIC05854 Ar + ABC4A NM_000350.2 Ho 35 c.4919G>A p.(R1640Q) + Highly Prd D Dc (Simonelli et al. 2000) (rs61751403) [82] CIC05989 simplex ABC4A NM_000350.2 Het 34 c.4837G>A p.(D1613N) + Not B D Dc Novel ABC4A NM_000350.2 Het 10 c.1302del p.(Q437Rfs*12) + - - - - Novel ABCA4 NM_000350.2 Het 38 c.5318C>T p.(A1773V) + Moderately Prd D Dc (Stenirri et al. 2008) [83] CIC06170 simplex ABC4A NM_000350.2 Het 44 c.6089G>A p.(R2030Q) + Highly Prd D Dc (Lewis et al. 1999) (rs61750641) ABC4A NM_000350.2 Het IVS 24 c.3607+3A>T r.(spl?)
X
ABCA4 p.Asp1613Asn 26103963:100:319
status: NEW