ClinVar Miner

Submissions for variant NM_001290043.2(TAP2):c.2029G>A (p.Glu677Lys)

gnomAD frequency: 0.00006  dbSNP: rs887743515
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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 RCV001934957 SCV002134533 uncertain significance MHC class I deficiency 2021-06-15 criteria provided, single submitter clinical testing 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 missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0". The lysine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with TAP2-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces glutamic acid with lysine at codon 677 of the TAP2 protein (p.Glu677Lys). The glutamic acid residue is weakly conserved and there is a small physicochemical difference between glutamic acid and lysine.

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