ABCC7 p.Ser519Gly
CF databases: |
c.1555A>G
,
p.Ser519Gly
(CFTR1)
?
, This variation was detected by DGGE and identified by DNA fluorescent sequencing in a normal individual.
|
Predicted by SNAP2: | A: N (93%), C: N (82%), D: N (87%), E: N (82%), F: N (57%), G: N (93%), H: N (93%), I: N (57%), K: N (93%), L: N (82%), M: N (66%), N: N (97%), P: N (82%), Q: N (93%), R: N (93%), T: N (97%), V: N (61%), W: D (59%), Y: N (53%), |
Predicted by PROVEAN: | A: N, C: D, D: N, E: N, F: D, G: N, H: N, I: D, K: N, L: D, M: N, N: N, P: D, Q: N, R: N, T: N, V: D, W: D, Y: D, |
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[hide] CFTR mutation combinations producing frequent comp... Hum Mutat. 2012 Nov;33(11):1557-65. doi: 10.1002/humu.22129. Epub 2012 Jul 2. El-Seedy A, Girodon E, Norez C, Pajaud J, Pasquet MC, de Becdelievre A, Bienvenu T, des Georges M, Cabet F, Lalau G, Bieth E, Blayau M, Becq F, Kitzis A, Fanen P, Ladeveze V
CFTR mutation combinations producing frequent complex alleles with different clinical and functional outcomes.
Hum Mutat. 2012 Nov;33(11):1557-65. doi: 10.1002/humu.22129. Epub 2012 Jul 2., [PMID:22678879]
Abstract [show]
Genotype-phenotype correlations in cystic fibrosis (CF) may be difficult to establish because of phenotype variability, which is associated with certain CF transmembrane conductance regulator (CFTR) gene mutations and the existence of complex alleles. To elucidate the clinical significance of complex alleles involving p.Gly149Arg, p.Asp443Tyr, p.Gly576Ala, and p.Arg668Cys, we performed a collaborative genotype-phenotype correlation study, collected epidemiological data, and investigated structure-function relationships for single and natural complex mutants, p.[Gly576Ala;Arg668Cys], p.[Gly149Arg;Gly576Ala;Arg668Cys], and p.[Asp443Tyr;Gly576Ala;Arg668Cys]. Among 153 patients carrying at least one of these mutations, only three had classical CF and all carried p.Gly149Arg in the triple mutant. Sixty-four had isolated infertility and seven were healthy individuals with a severe mutation in trans, but none had p.Gly149Arg. Functional studies performed on all single and natural complex mutants showed that (1) p.Gly149Arg results in a severe misprocessing defect; (2) p.Asp443Tyr moderately alters CFTR maturation; and (3) p.Gly576Ala, a known splicing mutant, and p.Arg668Cys mildly alter CFTR chloride conductance. Overall, the results consistently show the contribution of p.Gly149Arg to the CF phenotype, and suggest that p.[Arg668Cys], p.[Gly576Ala;Arg668Cys], and p.[Asp443Tyr;Gly576Ala;Arg668Cys] are associated with CFTR-related disorders. The present study emphasizes the importance of comprehensive genotype-phenotype and functional studies in elucidating the impact of mutations on clinical phenotype. Hum Mutat 33:1557-1565, 2012. (c) 2012 Wiley Periodicals, Inc.
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No. Sentence Comment
108 [3705T>G;1210-13T[5]] 1 Healthy CF carrier`s partner NA NA p.[Ser519Gly;Gly576Ala;Arg668Cys] NI 2 Healthy CF carrier`s partner 37 y, NA NA p.[Asp443Tyr;Gly576Ala;Arg668Cys] NI 20 Healthy CF carrier`s partner 24-42 y NA p.[Gly576Ala;Arg668Cys] NI 1 Healthy CF carrier`s partner 32 y NA p.Gly576Ala NI 1 Healthy CF patient`s mother 37 y NA p.Arg668Cys p.Arg792X 1 Healthy CF relative (p.Gly745X) 22 y NA p.Arg668Cys NI 1 Healthy General population NA NA p.[Gly576Ala;Arg668Cys] NI CF, cystic fibrosis; CF?, suspicion of cystic fibrosis; CBAVD, congenital bilateral absence of vas deferens; CSD, chronic sinus disease; DB, disseminated bronchiectasis; ENT, ear, nose, and throat symptoms; FBA, fetal bowel anomaly; GI, gastrointestinal symptoms; IP, idiopathic pancreatitis; IRT, immunoreactive trypsinemia; m, months; NA, not available; NI, not identified; P, pulmonary symptoms; Pa: Pseudomonas aeruginosa; PI, pancreatic insufficiency; wg, weeks of gestation; ST, sweat test; TOP, termination of pregnancy; y, years.
X
ABCC7 p.Ser519Gly 22678879:108:62
status: NEW122 Epidemiological Data from the French General Population Of the 1,423 healthy individuals screened, 26 were heterozygous for p.[Gly576Ala;Arg668Cys] (allelic frequency 0.91%, 95% CI 0.60-1.33%); four for p.[Asp443Tyr;Gly576Ala;Arg668Cys] (allelic frequency 0.14%, 95% CI 0.04-0.36%); two for p.Arg668Cys; two for p.Gly576Ala (allelic frequency for each 0.07%, 95% CI 0.0080.25%); and one for p.[Ser519Gly;Gly576Ala;Arg668Cys] (allelic frequency 0.04%, 95% CI 0.0009-0.20%).
X
ABCC7 p.Ser519Gly 22678879:122:394
status: NEW178 This was corroborated by the observation that additional, different mutations occurred on this haplotype (p.Asp443Tyr, p.Gly149Arg, and p.Ser519Gly, the latter being observed only once in the sample from the general population).
X
ABCC7 p.Ser519Gly 22678879:178:138
status: NEW