ClinVar Miner

Submissions for variant NM_000135.4(FANCA):c.660G>C (p.Gln220His) (rs1555571174)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000539906 SCV000626214 uncertain significance Fanconi anemia 2017-06-28 criteria provided, single submitter clinical testing This sequence change replaces glutamine with histidine at codon 220 of the FANCA protein (p.Gln220His). The glutamine residue is weakly conserved and there is a small physicochemical difference between glutamine and histidine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with a FANCA-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The histidine 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. In summary, this variant has uncertain impact on FANCA function. The available evidence is currently insufficient to determine its role in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

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