NM_000091.4(COL4A3):c.190G>C (p.Gly64Arg) AND not provided

Clinical significance:Uncertain significance (Last evaluated: Mar 11, 2020)

Review status:1 star out of maximum of 4 stars

criteria provided, single submitter

Based on:
2 submissions [Details]
Record status:
current
Accession:
RCV000681945.2

Allele description [Variation Report for NM_000091.4(COL4A3):c.190G>C (p.Gly64Arg)]

NM_000091.4(COL4A3):c.190G>C (p.Gly64Arg)

Genes:
MFF-DT:MFF divergent transcript [Gene - HGNC]
COL4A3:collagen type IV alpha 3 chain [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
2q36.3
Genomic location:
Preferred name:
NM_000091.4(COL4A3):c.190G>C (p.Gly64Arg)
HGVS:
  • NC_000002.12:g.227240188G>C
  • NG_011591.1:g.80624G>C
  • NM_000091.4:c.190G>C
  • NP_000082.2:p.Gly64Arg
  • LRG_230t1:c.190G>C
  • LRG_230:g.80624G>C
  • LRG_230p1:p.Gly64Arg
  • NC_000002.11:g.228104904G>C
Protein change:
G64R
Links:
dbSNP: rs917643323
NCBI 1000 Genomes Browser:
rs917643323
Molecular consequence:
  • NM_000091.4:c.190G>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Identifiers:
MedGen: CN517202

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000809432Gharavi Laboratory,Columbia Universityno assertion criteria provided
Likely pathogenic
(Sep 16, 2018)
germlineresearch

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

SCV001563792Invitaecriteria provided, single submitter
Uncertain significance
(Mar 11, 2020)
germlineclinical testing

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

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineyesnot providednot providednot providednot providednot providedresearch
not providedgermlineunknownnot 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

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 Gharavi Laboratory,Columbia University, SCV000809432.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedresearch PubMed (1)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineyesnot providednot providednot providednot providednot providednot providednot provided

From Invitae, SCV001563792.1

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

Description

This sequence change replaces glycine with arginine at codon 64 of the COL4A3 protein (p.Gly64Arg). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and arginine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with COL4A3-related conditions. ClinVar contains an entry for this variant (Variation ID: 562462). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: Deleterious; PolyPhen-2: Probably Damaging; Align-GVGD: Class C0). 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: Apr 18, 2021

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