ClinVar Miner

Submissions for variant NM_000419.5(ITGA2B):c.432G>A (p.Trp144Ter)

dbSNP: rs2143489377
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen Platelet Disorders Variant Curation Expert Panel, ClinGen RCV001803423 SCV002047574 pathogenic Glanzmann thrombasthenia 2021-06-30 reviewed by expert panel curation The NM_000419.5(ITGA2B):c.432G>A (p.Trp144Ter) nonsense variant creates a premature stop codon in exon 4/30 leading to nonsense mediated decay in a gene in which loss-of-function is an established disease mechanism (PVS1). . At least two probands has been reported with this variant, including GT34 of PMID: 29675921 who meets the criteria for PP4_strong. A second patient in PMID: 30138987 is homozygous for Trp144Ter (PM3_supporting). This variant is absent from gnomAD v2.1.1 (PM2_Supporting). In summary, this variant meets the criteria to be classified as Pathogenic for autosomal recessive Glanzmann Thrombasthenia based on the ACMG/AMP criteria applied, as specified by the ClinGen PD VCEP: PVS1, PM2_supporting, PM3_supporting, PP4_strong. (VCEP specifications version 2; date of approval xx/xx/xxxx)

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