ClinVar Miner

Submissions for variant NM_000127.3(EXT1):c.238A>G (p.Ile80Val)

dbSNP: rs1817886276
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001943952 SCV002212855 uncertain significance Multiple congenital exostosis 2021-05-24 criteria provided, single submitter clinical testing This sequence change replaces isoleucine with valine at codon 80 of the EXT1 protein (p.Ile80Val). The isoleucine residue is weakly conserved and there is a small physicochemical difference between isoleucine and valine. 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt EXT1 protein function. This variant has not been reported in the literature in individuals with EXT1-related conditions.

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