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NM_000419.5(ITGA2B):c.2850G>A (p.Leu950=) AND Glanzmann thrombasthenia

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Jun 30, 2023
Review status:
1 star out of maximum of 4 stars
criteria provided, single submitter
Somatic classification
of clinical impact:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Somatic classification
of oncogenicity:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Record status:
current
Accession:
RCV003605385.2

Allele description [Variation Report for NM_000419.5(ITGA2B):c.2850G>A (p.Leu950=)]

NM_000419.5(ITGA2B):c.2850G>A (p.Leu950=)

Gene:
ITGA2B:integrin subunit alpha 2b [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
17q21.31
Genomic location:
Preferred name:
NM_000419.5(ITGA2B):c.2850G>A (p.Leu950=)
HGVS:
  • NC_000017.11:g.44374752C>T
  • NG_008331.1:g.19754G>A
  • NM_000419.5:c.2850G>AMANE SELECT
  • NP_000410.2:p.Leu950=
  • NP_000410.2:p.Leu950=
  • LRG_479t1:c.2850G>A
  • LRG_479:g.19754G>A
  • LRG_479p1:p.Leu950=
  • NC_000017.10:g.42452120C>T
  • NM_000419.3:c.2850G>A
Molecular consequence:
  • NM_000419.5:c.2850G>A - synonymous variant - [Sequence Ontology: SO:0001819]

Condition(s)

Name:
Glanzmann thrombasthenia
Synonyms:
PLATELET GLYCOPROTEIN IIb-IIIa DEFICIENCY; Thrombasthenia of Glanzmann and Naegeli; Glanzmann thrombasthenia type A; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0100326; MedGen: C0040015; Orphanet: 849; OMIM: PS273800

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV004458919Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Jun 30, 2023) 		germlineclinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]
PMID:
28492532
PMCID:
PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV004458919.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)

Description

This sequence change affects codon 950 of the ITGA2B mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the ITGA2B protein. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. This variant has not been reported in the literature in individuals affected with ITGA2B-related conditions. This variant is present in population databases (rs763618505, gnomAD 0.004%).

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024