ABCA4 p.Thr1415Pro
| Predicted by SNAP2: | A: N (57%), C: N (53%), D: N (53%), E: N (57%), F: D (66%), G: D (53%), H: N (61%), I: D (53%), K: N (66%), L: D (53%), M: N (53%), N: N (66%), P: D (53%), Q: N (53%), R: N (53%), S: N (78%), V: N (57%), W: D (80%), Y: D (63%), |
| Predicted by PROVEAN: | A: N, C: D, D: D, E: D, F: D, G: D, H: D, I: D, K: D, L: D, M: D, N: D, P: D, Q: D, R: D, S: N, V: N, W: D, Y: D, |
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[hide] Phenotypic and genetic spectrum of Danish patients... Ophthalmic Genet. 2012 Dec;33(4):225-31. doi: 10.3109/13816810.2011.643441. Epub 2012 Jan 9. Duno M, Schwartz M, Larsen PL, Rosenberg T
Phenotypic and genetic spectrum of Danish patients with ABCA4-related retinopathy.
Ophthalmic Genet. 2012 Dec;33(4):225-31. doi: 10.3109/13816810.2011.643441. Epub 2012 Jan 9., [PMID:22229821]
Abstract [show]
Background: Pathogenic variations in the ABCA4 gene were originally recognized as genetic background for the autosomal recessive disorders Stargardt disease and fundus flavimaculatus, but have expanded to embrace a diversity of retinal diseases, giving rise to the new diagnostic term, ABCA4-related retinopathy. Diagnostic genotyping of ABCA4 is complicated by the large size of the gene and the existence of approximately 600 known pathogenic variations, along with numerous rare polymorphisms. A commercial diagnostic array-based assay has been developed targeting known mutations, however a conclusive genetic diagnosis must rely on a comprehensive genetic screening as the mutation spectrum of ABCA4-related retinopathies continues to expand. Material and methods: Among 161 patients with a Stargardt-related phenotype previously assessed with the commercial ABCA4 mutation microarray, we analyzed the ABCA4 gene with High-resolution melting (HRM) in patients in whom the array analysis identified either a heterozygous mutation (n = 50) or no mutation (n = 30). Results: The HRM method detected each of the already known mutations and polymorphisms. We identified the second ABCA4 mutation in 31 of 50 heterozygous patients (62%). Several novel mutations were identified of which four were identified multiple times. The recurrent novel mutations were subsequently assessed among the 30 patients with possible ABCA4-related diseases, previously found to be negative for known ABCA4 mutations by array analysis. In total, 30 different mutations were identified of which 21 have not been described before. Conclusion: Scandinavian patients with ABCA4-related retinopathy appear to have a distinct mutation spectrum, which can be identified in patients of diverse clinical phenotypes.
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No. Sentence Comment
89 Encouraged by the result and the identification Table 2 Mutations identified by selected HRM screening of 30 patients without Asper-mutations Patient DNA Protein Exon/intron Ref D015 c.3380G>A p.G1127E 23 New* c.6478A>G p.K2160E 47 New* c.1654G>A p.V552I 12 29 D048 c.3765_3766dupTG na 25 New c.5693G>A p.R1898H 40 28 c.1964T>G p.F655C 14 30 D128 c.2408delG na 16 New* c.4243A>C p.T1415P 28 New D133 c.1529T>G p.L510R 11 New* c.6386 + 1G>A na 46 New* D061 c.1529T>G p.L510R 11 New* D102 c.2895T>G p.N965K 19 New D183 c.4069G>A p.A1357T 27 New D190 c.2408delG na 16 New* na; not applicable, *Identified during the initial mutation screen.
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ABCA4 p.Thr1415Pro 22229821:89:389
status: NEW97 Phenotype Patient Mutation 1 Mutation 2 Mutation 3 Stargardt-flavimaculatus D043 p.G863A p.P62S D050 p.G863A p.L510R D112 p.N965S p.L510R D069 p.A1038V p.L510R D099 p.R2030Q p.L510R D178 p.A1038V c.1843_1844delRG D166 p.G863A p.V767D D191 p.G863A p.A1357T D167 c.5461-10T>C p.R1368C D128 p.2408delG* p.T1415P D027 p.G863A c.4668-2A>G* D136 p.[L541P+A1038V] p.L1580S D048 c.3766dupTG* p.R1898H p.F655C D034 p.G863A c.4773 + 5G>A* D015 p. G1127K p.K2160E p.V552I D189 p.N965S p.K2160E D433 p.G1961E c.6005 + 1G>A* Generalized retinal dystrophy D117 c.3191-2A>G* c.2408delG* D135 p.N965S c.2408delG* D147 p.N965S c.2408delG* D173 p.C1490Y p.T972N D018 p.C2150Y p.L1246V D022 p.C1488R p.R1368C D108 p.G550R p.R1368C D414 p.G863A p.W1551X* D444 p.T901A c.4773 + 3A>G* D110 p.[L541P+A1038V] c.5584 + 1G>A* D182 p.R2030Q c.6386 + 1G>A* D186 p.R1108C c.6386 + 1G>AA* D133 p.L510R IVS46 + 1G>A* Cone-rod dystrophy D134 c.4667 + 2G>T* p.L2033R Atypical maculopathy D165 p.F608L p.C748Y D181 p.R2030Q p.G1127E D188 c.5461-10T>C p.R1898H *Predicted to compromise correct reading frame.
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ABCA4 p.Thr1415Pro 22229821:97:302
status: NEW91 Encouraged by the result and the identification Table 2ߒ Mutations identified by selected HRM screening of 30 patients without Asper-mutations Patient DNA Protein Exon/intron Ref D015 c.3380G>A p.G1127E 23 New* c.6478A>G p.K2160E 47 New* c.1654G>A p.V552I 12 29 D048 c.3765_3766dupTG na 25 New c.5693G>A p.R1898H 40 28 c.1964T>G p.F655C 14 30 D128 c.2408delG na 16 New* c.4243A>C p.T1415P 28 New D133 c.1529T>G p.L510R 11 New* c.6386ߙ+ߙ1G>A na 46 New* D061 c.1529T>G p.L510R 11 New* D102 c.2895T>G p.N965K 19 New D183 c.4069G>A p.A1357T 27 New D190 c.2408delG na 16 New* na; not applicable, *Identified during the initial mutation screen.
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ABCA4 p.Thr1415Pro 22229821:91:388
status: NEW100 Phenotype Patient Mutation 1 Mutation 2 Mutation 3 Stargardt-flavimaculatus D043 p.G863A p.P62S D050 p.G863A p.L510R D112 p.N965S p.L510R D069 p.A1038V p.L510R D099 p.R2030Q p.L510R D178 p.A1038V c.1843_1844delRG D166 p.G863A p.V767D D191 p.G863A p.A1357T D167 c.5461-10T>C p.R1368C D128 p.2408delG* p.T1415P D027 p.G863A c.4668-2A>G* D136 p.[L541P+A1038V] p.L1580S D048 c.3766dupTG* p.R1898H p.F655C D034 p.G863A c.4773ߙ+ߙ5G>A* D015 p. G1127K p.K2160E p.V552I D189 p.N965S p.K2160E D433 p.G1961E c.6005ߙ+ߙ1G>A* Generalized retinal dystrophy D117 c.3191-2A>G* c.2408delG* D135 p.N965S c.2408delG* D147 p.N965S c.2408delG* D173 p.C1490Y p.T972N D018 p.C2150Y p.L1246V D022 p.C1488R p.R1368C D108 p.G550R p.R1368C D414 p.G863A p.W1551X* D444 p.T901A c.4773ߙ+ߙ3A>G* D110 p.[L541P+A1038V] c.5584ߙ+ߙ1G>A* D182 p.R2030Q c.6386ߙ+ߙ1G>A* D186 p.R1108C c.6386ߙ+ߙ1G>AA* D133 p.L510R IVS46ߙ+ߙ1G>A* Cone-rod dystrophy D134 c.4667ߙ+ߙ2G>T* p.L2033R Atypical maculopathy D165 p.F608L p.C748Y D181 p.R2030Q p.G1127E D188 c.5461-10T>C p.R1898H *Predicted to compromise correct reading frame.
X
ABCA4 p.Thr1415Pro 22229821:100:302
status: NEW