ClinVar Miner

Submissions for variant NM_000545.8(HNF1A):c.71_72del (p.Glu24fs)

dbSNP: rs2135819527
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen Monogenic Diabetes Variant Curation Expert Panel RCV002208723 SCV002495709 pathogenic Monogenic diabetes 2022-04-01 reviewed by expert panel curation The c.71_72delAG variant in the HNF1 homeobox A gene, HNF1A, is a two base pair deletion resulting in a frameshift in the protein at codon 24 in NM_000545.8, adding 8 novel amino acids before encountering a stop codon (p.(Glu24GlyfsTer8)). This variant, located in biologically-relevant exon 1 of 10, is predicted to lead to nonsense mediated decay in a gene in which loss-of-function is an established disease mechanism (PVS1; PMID: 23348805). Additionally, this variant is absent from gnomAD v2.1.1 (PM2_Supporting). This variant segregated with diabetes, with three informative meioses in one family (PP1; PMID: 12453976). In summary, this variant meets the criteria to be classified as pathogenic for monogenic diabetes. ACMG/AMP criteria applied, as specified by the ClinGen MDEP (specification version 1.1, approved 9/30/2021): PVS1, PM2_Supporting, PP1.

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