NM_002180.3(IGHMBP2):c.2374G>A (p.Ala792Thr) AND multiple conditions

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Aug 31, 2021
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:
RCV001301622.5

Allele description [Variation Report for NM_002180.3(IGHMBP2):c.2374G>A (p.Ala792Thr)]

NM_002180.3(IGHMBP2):c.2374G>A (p.Ala792Thr)

Gene:
IGHMBP2:immunoglobulin mu DNA binding protein 2 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
11q13.3
Genomic location:
Preferred name:
NM_002180.3(IGHMBP2):c.2374G>A (p.Ala792Thr)
HGVS:
  • NC_000011.10:g.68936854G>A
  • NG_007976.1:g.38004G>A
  • NM_002180.3:c.2374G>AMANE SELECT
  • NP_002171.2:p.Ala792Thr
  • LRG_250:g.38004G>A
  • NC_000011.9:g.68704322G>A
Protein change:
A792T
Links:
dbSNP: rs766802836
NCBI 1000 Genomes Browser:
rs766802836
Molecular consequence:
  • NM_002180.3:c.2374G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Autosomal recessive distal spinal muscular atrophy 1
Synonyms:
HMN VI; SPINAL MUSCULAR ATROPHY, DIAPHRAGMATIC; Spinal muscular atrophy with respiratory distress 1; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0011436; MedGen: C1858517; Orphanet: 98920; OMIM: 604320
Name:
Charcot-Marie-Tooth disease axonal type 2S
Synonyms:
CHARCOT-MARIE-TOOTH DISEASE, AXONAL, AUTOSOMAL RECESSIVE, TYPE 2S; CHARCOT-MARIE-TOOTH NEUROPATHY, TYPE 2S
Identifiers:
MONDO: MONDO:0014511; MedGen: C4015349; Orphanet: 443073; OMIM: 616155

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV001490799Invitae
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Aug 31, 2021) 		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):240-242.

PubMed [citation]
PMID:
28492532
PMCID:
PMC5632818

Details of each submission

From Invitae, SCV001490799.3

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

Description

This sequence change replaces alanine with threonine at codon 792 of the IGHMBP2 protein (p.Ala792Thr). The alanine residue is weakly conserved and there is a small physicochemical difference between alanine and threonine. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant has not been reported in the literature in individuals affected with IGHMBP2-related conditions. 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) performed at Invitae indicates that this missense variant is not expected to disrupt IGHMBP2 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.

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

Last Updated: Oct 21, 2023