NM_206933.4(USH2A):c.8758A>G (p.Thr2920Ala) AND not provided

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Jan 23, 2024
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:: RCV001049404.7

Allele description [Variation Report for NM_206933.4(USH2A):c.8758A>G (p.Thr2920Ala)]

NM_206933.4(USH2A):c.8758A>G (p.Thr2920Ala)

Gene:

USH2A:usherin [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

1q41

Genomic location:

Preferred name:

NM_206933.4(USH2A):c.8758A>G (p.Thr2920Ala)

HGVS:

NC_000001.11:g.215867094T>C
NG_009497.2:g.561355A>G
NM_206933.4:c.8758A>GMANE SELECT
NP_996816.3:p.Thr2920Ala
NC_000001.10:g.216040436T>C
NG_009497.1:g.561303A>G
NM_206933.2:c.8758A>G

Protein change:

T2920A

Links:

dbSNP: rs762358589

NCBI 1000 Genomes Browser:

rs762358589

Molecular consequence:

NM_206933.4:c.8758A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Synonyms:: none provided
Identifiers:: MedGen: C3661900

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001213452	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Jan 23, 2024)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 36819107, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001213452

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Jan 23, 2024)

germline

clinical testing

PubMed (2)
[See all records that cite these PMIDs]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Cost-effective sequence analysis of 113 genes in 1,192 probands with retinitis pigmentosa and Leber congenital amaurosis.

Panneman DM, Hitti-Malin RJ, Holtes LK, de Bruijn SE, Reurink J, Boonen EGM, Khan MI, Ali M, Andréasson S, De Baere E, Banfi S, Bauwens M, Ben-Yosef T, Bocquet B, De Bruyne M, de la Cerda B, Coppieters F, Farinelli P, Guignard T, Inglehearn CF, Karali M, Kjellström U, et al.

Front Cell Dev Biol. 2023;11:1112270. doi: 10.3389/fcell.2023.1112270.

PubMed [citation]

PMID:: 36819107
PMCID:: PMC9936074

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, SCV001213452.5

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (2)

Description

This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 2920 of the USH2A protein (p.Thr2920Ala). This variant is present in population databases (rs762358589, gnomAD 0.003%). This missense change has been observed in individuals with retinitis pigmentosa (PMID: 36819107; Invitae). ClinVar contains an entry for this variant (Variation ID: 846165). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on USH2A protein function. 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.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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