ClinVar Miner

Submissions for variant NM_003923.3(FOXH1):c.812C>T (p.Ala271Val)

gnomAD frequency: 0.00004  dbSNP: rs372121961
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Illumina Laboratory Services, Illumina RCV001165082 SCV001327250 uncertain significance Holoprosencephaly sequence 2017-04-27 criteria provided, single submitter clinical testing This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance.
Invitae RCV001165082 SCV002141869 uncertain significance Holoprosencephaly sequence 2022-08-16 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: "Benign"; Align-GVGD: "Class C0". The valine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. ClinVar contains an entry for this variant (Variation ID: 912094). This variant has not been reported in the literature in individuals affected with FOXH1-related conditions. This variant is present in population databases (rs372121961, gnomAD 0.06%), and has an allele count higher than expected for a pathogenic variant. This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 271 of the FOXH1 protein (p.Ala271Val).

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