ClinVar Miner

Submissions for variant NM_005267.5(GJA8):c.153C>G (p.Asp51Glu)

dbSNP: rs1307969607
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000696271 SCV000824823 pathogenic Cataract 1 multiple types 2019-01-16 criteria provided, single submitter clinical testing For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Asp51 amino acid residue in GJA8. Other variant(s) that disrupt this residue have been observed in individuals with GJA8-related conditions (PMID: 26694549, 29464339), suggesting that it is a clinically significant residue. As a result, variants that disrupt this residue are likely to be causative of disease. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has been observed to be de novo in an individual affected with congenital cataracts (Invitae). This variant is not present in population databases (ExAC no frequency). This sequence change replaces aspartic acid with glutamic acid at codon 51 of the GJA8 protein (p.Asp51Glu). The aspartic acid residue is highly conserved and there is a small physicochemical difference between aspartic acid and glutamic acid.

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