ClinVar Miner

Submissions for variant NM_000350.3(ABCA4):c.1852G>A (p.Gly618Arg)

dbSNP: rs1661163134
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Blueprint Genetics RCV001075608 SCV001241235 pathogenic Retinal dystrophy 2019-01-30 criteria provided, single submitter clinical testing
Labcorp Genetics (formerly Invitae), Labcorp RCV001389149 SCV001590412 pathogenic not provided 2024-11-19 criteria provided, single submitter clinical testing This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 618 of the ABCA4 protein (p.Gly618Arg). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with Stargardt disease (PMID: 22661472). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 867085). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt ABCA4 protein function with a positive predictive value of 95%. This variant disrupts the p.Gly618 amino acid residue in ABCA4. Other variant(s) that disrupt this residue have been observed in individuals with ABCA4-related conditions (PMID: 15494742), which suggests that this may be a clinically significant amino acid residue. For these reasons, this variant has been classified as Pathogenic.

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