rs80002943
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PS3_SupportingPM2_SupportingPM3_Supporting
This summary comes from the ClinGen Evidence Repository: The c.2870C>T; p.Ser957Leu variant has been reported, in the homozygous state, in at least one proband (PMID:20020534). It is absent from population databases ExAC and gnomAD. The Ser957Leu mutant complex was expressed in COS-7 cells and, in three replicates, expression of the complex (% positive cells) was assessed by flow cytometry, using antibodies to alpha-IIb, beta-3 or the complex, finding approximately 19% positive cells for the αIIbβ3 complex compared to WT. In summary, this variant meets criteria to be classified as uncertain significance for GT. GT-specific criteria applied: PS3_supporting, PM2_Supporting and PM3_Supporting. LINK:https://erepo.genome.network/evrepo/ui/classification/CA115850/MONDO:0010119/011
Frequency
Consequence
NM_000419.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ITGA2B | NM_000419.5 | c.2870C>T | p.Ser957Leu | missense_variant | 28/30 | ENST00000262407.6 | |
ITGA2B | XM_011524750.2 | c.3023C>T | p.Ser1008Leu | missense_variant | 28/29 | ||
ITGA2B | XM_011524749.2 | c.2995-262C>T | intron_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ITGA2B | ENST00000262407.6 | c.2870C>T | p.Ser957Leu | missense_variant | 28/30 | 1 | NM_000419.5 | P1 | |
ITGA2B | ENST00000648408.1 | c.2303C>T | p.Ser768Leu | missense_variant | 24/25 | ||||
ITGA2B | ENST00000587295.5 | c.253+1101C>T | intron_variant | 3 | |||||
ITGA2B | ENST00000592462.5 | n.2381C>T | non_coding_transcript_exon_variant | 15/15 | 5 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461788Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727194
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Glanzmann thrombasthenia 1 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Mar 01, 2010 | - - |
Glanzmann thrombasthenia Uncertain:1
Uncertain significance, reviewed by expert panel | curation | ClinGen Platelet Disorders Variant Curation Expert Panel, ClinGen | Mar 16, 2023 | The c.2870C>T; p.Ser957Leu variant has been reported, in the homozygous state, in at least one proband (PMID: 20020534). It is absent from population databases ExAC and gnomAD. The Ser957Leu mutant complex was expressed in COS-7 cells and, in three replicates, expression of the complex (% positive cells) was assessed by flow cytometry, using antibodies to alpha-IIb, beta-3 or the complex, finding approximately 19% positive cells for the αIIbβ3 complex compared to WT. In summary, this variant meets criteria to be classified as uncertain significance for GT. GT-specific criteria applied: PS3_supporting, PM2_Supporting and PM3_Supporting. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at