ClinVar Miner

Submissions for variant NM_000709.4(BCKDHA):c.261G>T (p.Gln87His)

gnomAD frequency: 0.00002  dbSNP: rs751862507
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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 RCV001132488 SCV001292148 uncertain significance Maple syrup urine disease 2018-03-16 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Ambry Genetics RCV004963140 SCV005539869 uncertain significance Inborn genetic diseases 2024-10-14 criteria provided, single submitter clinical testing The p.Q87H variant (also known as c.261G>T), located in coding exon 2 of the BCKDHA gene, results from a G to T substitution at nucleotide position 261. The glutamine at codon 87 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear.

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