ClinVar Miner

Submissions for variant NM_000350.3(ABCA4):c.1977G>A (p.Met659Ile)

dbSNP: rs1661099730
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001212178 SCV001383754 uncertain significance not provided 2021-10-11 criteria provided, single submitter clinical testing Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This missense change has been observed in individual(s) with ABCA4-related disease (PMID: 21911583). This variant is not present in population databases (ExAC no frequency). This sequence change replaces methionine with isoleucine at codon 659 of the ABCA4 protein (p.Met659Ile). The methionine residue is highly conserved and there is a small physicochemical difference between methionine and isoleucine. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

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