ClinVar Miner

Submissions for variant NM_004614.5(TK2):c.469G>T (p.Asp157Tyr)

gnomAD frequency: 0.00001  dbSNP: rs374777494
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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 RCV002033898 SCV002287022 uncertain significance not provided 2021-09-29 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid with tyrosine at codon 157 of the TK2 protein (p.Asp157Tyr). The aspartic acid residue is highly conserved and there is a large physicochemical difference between aspartic acid and tyrosine. This variant is present in population databases (rs374777494, ExAC 0.001%). This variant has not been reported in the literature in individuals affected with TK2-related conditions. 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 expected to disrupt TK2 protein function. 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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