ClinVar Miner

Submissions for variant NM_000222.3(KIT):c.22T>A (p.Trp8Arg)

dbSNP: rs1577898533
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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 RCV001218175 SCV001390047 uncertain significance Gastrointestinal stromal tumor 2021-10-04 criteria provided, single submitter clinical testing This variant is not present in population databases (ExAC no frequency). 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. 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 output the following: SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0". The arginine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This variant has not been reported in the literature in individuals affected with KIT-related conditions. This sequence change replaces tryptophan with arginine at codon 8 of the KIT protein (p.Trp8Arg). The tryptophan residue is highly conserved and there is a moderate physicochemical difference between tryptophan and arginine.

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