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NM_152263.4(TPM3):c.844A>G (p.Met282Val) AND multiple conditions

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Mar 18, 2022
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:
RCV002028696.4

Allele description [Variation Report for NM_152263.4(TPM3):c.844A>G (p.Met282Val)]

NM_152263.4(TPM3):c.844A>G (p.Met282Val)

Gene:
TPM3:tropomyosin 3 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
1q21.3
Genomic location:
Preferred name:
NM_152263.4(TPM3):c.844A>G (p.Met282Val)
HGVS:
  • NC_000001.11:g.154169315T>C
  • NG_008621.1:g.27819A>G
  • NM_001043351.2:c.664+1085A>G
  • NM_001043352.2:c.664+1085A>G
  • NM_001043353.2:c.664+1085A>G
  • NM_001278188.2:c.466+1085A>G
  • NM_001278189.2:c.733A>G
  • NM_001278190.2:c.601+1085A>G
  • NM_001278191.2:c.394+1085A>G
  • NM_001349679.2:c.733A>G
  • NM_001364679.2:c.775+1085A>G
  • NM_001364680.2:c.775+1085A>G
  • NM_001364681.2:c.775+1085A>G
  • NM_001364682.1:c.844A>G
  • NM_001364683.1:c.733A>G
  • NM_152263.4:c.844A>GMANE SELECT
  • NM_153649.4:c.664+1085A>G
  • NP_001265118.1:p.Met245Val
  • NP_001336608.1:p.Met245Val
  • NP_001351611.1:p.Met282Val
  • NP_001351612.1:p.Met245Val
  • NP_689476.2:p.Met282Val
  • LRG_681t1:c.664+1085A>G
  • LRG_681t2:c.844A>G
  • LRG_681t3:c.664+1085A>G
  • LRG_681:g.27819A>G
  • LRG_681p2:p.Met282Val
  • NC_000001.10:g.154141791T>C
Protein change:
M245V
Links:
dbSNP: rs1661325667
NCBI 1000 Genomes Browser:
rs1661325667
Molecular consequence:
  • NM_001043351.2:c.664+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001043352.2:c.664+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001043353.2:c.664+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001278188.2:c.466+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001278190.2:c.601+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001278191.2:c.394+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001364679.2:c.775+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001364680.2:c.775+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001364681.2:c.775+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_153649.4:c.664+1085A>G - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001278189.2:c.733A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001349679.2:c.733A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001364682.1:c.844A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001364683.1:c.733A>G - missense variant - [Sequence Ontology: SO:0001583]
  • NM_152263.4:c.844A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Congenital myopathy 4B, autosomal recessive
Synonyms:
Nemaline myopathy caused by mutation in the tropomyosin 3 gene; Nemaline myopathy 1, autosomal dominant or recessive
Identifiers:
MONDO: MONDO:0012239; MedGen: C5829889; Orphanet: 171433; Orphanet: 171439; Orphanet: 171881; OMIM: 609284
Name:
Congenital myopathy with fiber type disproportion
Synonyms:
Congenital fiber-type disproportion myopathy; Congenital Fiber-Type Disproportion
Identifiers:
MONDO: MONDO:0009711; MedGen: C0546264; Orphanet: 2020

Recent activity

Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV002294797Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Mar 18, 2022) 		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, SCV002294797.3

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

Description

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 create or strengthen a splice site. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with TPM3-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 282 of the TPM3 protein (p.Met282Val).

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

Last Updated: Sep 29, 2024