ClinVar Miner

Submissions for variant NM_000355.4(TCN2):c.1229C>G (p.Ala410Gly)

gnomAD frequency: 0.00031  dbSNP: rs145807876
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001038022 SCV001201463 uncertain significance Transcobalamin II deficiency 2022-07-11 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 410 of the TCN2 protein (p.Ala410Gly). This variant is present in population databases (rs145807876, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with TCN2-related conditions. ClinVar contains an entry for this variant (Variation ID: 836814). 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"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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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