Submissions for variant NM_001931.5(DLAT):c.396dup (p.Ala133fs)

dbSNP: rs782173047

Total submissions: 1

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
Illumina Laboratory Services, Illumina	RCV000778303	SCV000914484	uncertain significance	Pyruvate dehydrogenase E2 deficiency	2017-06-23	criteria provided, single submitter	clinical testing	The DLAT c.396dupA (p.Ala133SerfsTer6) variant results in a frameshift, and is predicted to result in premature termination of the protein. It was observed by ICSL 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 for this variant, it 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 and cDNA change, and amino acid change. No publications were found based on this search. Due to the potential impact of frameshift variants and the lack of clarifying evidence, this variant is classified as a variant of unknown significance but suspicious for pathogenicity for pyruvate dehydrogenase complex deficiency.