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NM_004004.6(GJB2):c.250G>C (p.Val84Leu) AND GJB2-Related Disorders

Germline classification:
Pathogenic (1 submission)
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:
RCV003335046.1

Allele description [Variation Report for NM_004004.6(GJB2):c.250G>C (p.Val84Leu)]

NM_004004.6(GJB2):c.250G>C (p.Val84Leu)

Gene:
GJB2:gap junction protein beta 2 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
13q12.11
Genomic location:
Preferred name:
NM_004004.6(GJB2):c.250G>C (p.Val84Leu)
HGVS:
  • NC_000013.11:g.20189332C>G
  • NG_008358.1:g.8644G>C
  • NM_004004.6:c.250G>CMANE SELECT
  • NP_003995.2:p.Val84Leu
  • LRG_1350t1:c.250G>C
  • LRG_1350:g.8644G>C
  • LRG_1350p1:p.Val84Leu
  • NC_000013.10:g.20763471C>G
  • NM_004004.5:c.250G>C
  • P29033:p.Val84Leu
  • c.250G>C
Protein change:
V84L; VAL84LEU
Links:
UniProtKB: P29033#VAR_002143; OMIM: 121011.0032; dbSNP: rs104894409
NCBI 1000 Genomes Browser:
rs104894409
Molecular consequence:
  • NM_004004.6:c.250G>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
GJB2-Related Disorders
Identifiers:

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV004046406Rady Children's Institute for Genomic Medicine, Rady Children's Hospital San Diego
criteria provided, single submitter

(ACMG Guidelines, 2015)		Pathogenicgermlineclinical testing

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

Help

Summary from all submissions

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

Citations

PubMed

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]
PMID:
25741868
PMCID:
PMC4544753

Details of each submission

From Rady Children's Institute for Genomic Medicine, Rady Children's Hospital San Diego, SCV004046406.1

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

Description

This variant has been previously reported as a compound heterozygous or homozygous variant in individuals with congenital hearing impairment (PMID: 16380907, 26346709, 24013081, 19235794, 11556849, 12172394, 12189487, 12497637, 15365987). Functional studies have shown that this missense change affects biochemical permeability and intercellular transport of large molecules (PMID: 12505163, 12562518, 15592461, 20441744, 16217030). The c.250G>C (p.Val84Leu) variant is present in the heterozygous state in the gnomAD population database at a frequency of 0.004% (9/251338) and is absent in the homozygous state, thus is presumed to be rare. In silico analyses predict a deleterious effect of the c.250G>C (p.Val84Leu) variant on protein function. Based on the available evidence, the c.250G>C (p.Val84Leu) variant is classified as Pathogenic.

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

Last Updated: Feb 20, 2024