ClinVar Miner

Submissions for variant NM_005050.4(ABCD4):c.1295G>A (p.Arg432Gln)

dbSNP: rs745414252
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV002271817 SCV002555819 likely pathogenic Cobalamin C disease 2024-03-25 criteria provided, single submitter clinical testing Variant summary: ABCD4 c.1295G>A (p.Arg432Gln) results in a conservative amino acid change located in the ABC transporter-like, ATP-binding domain (IPR003439) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4e-06 in 251442 control chromosomes. c.1295G>A has been reported in the literature as a compound heterozygous genotype in at-least two individuals affected with Methylmalonic Acidemia With Homocystinuria (example, Fettelschoss_2017 cited by Liu_2019, Pillai_2019). At least one publication reports experimental evidence evaluating an impact on protein function (Fettelschoss_2017). The most pronounced variant effect results in decreased interaction of ABCD4 with its binding partner LMBD1. The following publications have been ascertained in the context of this evaluation (PMID: 28572511, 33845046, 30651581, 33729671). ClinVar contains an entry for this variant (Variation ID: 1698540). Based on the evidence outlined above, the variant was classified as likely pathogenic.
Fulgent Genetics, Fulgent Genetics RCV005008502 SCV005635714 likely pathogenic Methylmalonic acidemia with homocystinuria, type cblJ 2024-05-04 criteria provided, single submitter clinical testing

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