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NM_000059.4(BRCA2):c.771_775del (p.Asn257fs) AND Familial cancer of breast

Germline classification:
Pathogenic (2 submissions)
Last evaluated:
Nov 24, 2023
Review status:
2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts
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:
RCV000056288.21

Allele description [Variation Report for NM_000059.4(BRCA2):c.771_775del (p.Asn257fs)]

NM_000059.4(BRCA2):c.771_775del (p.Asn257fs)

Gene:
BRCA2:BRCA2 DNA repair associated [Gene - OMIM - HGNC]
Variant type:
Deletion
Cytogenetic location:
13q13.1
Genomic location:
Preferred name:
NM_000059.4(BRCA2):c.771_775del (p.Asn257fs)
Other names:
995del5
HGVS:
  • NC_000013.10:g.32905141_32905145del
  • NC_000013.11:g.32331008_32331012del
  • NG_012772.3:g.20529_20533del
  • NM_000059.4:c.771_775delMANE SELECT
  • NP_000050.3:p.Asn257fs
  • LRG_293:g.20529_20533del
  • NC_000013.10:g.32905141_32905145del
  • NC_000013.10:g.32905145_32905149del
  • NC_000013.10:g.32905145_32905149del
  • NC_000013.10:g.32905145_32905149delTCAAA
  • NM_000059.3:c.771_775delTCAAA
  • NM_000059.4:c.771_775delTCAAA
  • U43746.1:n.995_999delCAAAT
  • U43746.1:n.999_1003delTCAAA
  • p.Asn257Lysfs*17
  • p.N257KFS*17
  • p.N257KfsX17
Nucleotide change:
999del5
Links:
Breast Cancer Information Core (BIC) (BRCA2): 995&base_change=del CAAAT; Breast Cancer Information Core (BIC) (BRCA2): 999&base_change=del TCAAA; OMIM: 600185.0010; dbSNP: rs80359671
NCBI 1000 Genomes Browser:
rs80359671
Molecular consequence:
  • NM_000059.4:c.771_775del - frameshift variant - [Sequence Ontology: SO:0001589]

Condition(s)

Name:
Familial cancer of breast
Synonyms:
Breast cancer, familial; Hereditary breast cancer
Identifiers:
MONDO: MONDO:0016419; MedGen: C0346153; OMIM: 114480

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000693552GeneKor MSA
criteria provided, single submitter

(ACMG Guidelines, 2015)
Pathogenic
(Jan 1, 2020)
germlineclinical testing

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

SCV004213709Baylor Genetics
criteria provided, single submitter

(ACMG Guidelines, 2015)
Pathogenic
(Nov 24, 2023)
unknownclinical testing

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

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing
not providedunknownunknownnot 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 GeneKor MSA, SCV000693552.3

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

Description

This is a deletion of five base pairs, which results in frameshift and creation of a novel stop codon 17 amino acid residues later. The result is a truncated, non-functional protein. Truncating variants in BRCA2 are known to be pathogenic.This variant is also known as 999del5 in the literature and is a common cause of breast and ovarian cancer in the Icelandic population but has been reported also in individuals of other ethnicities (PMID: 9150155, 8673089, 8589730 ; 25863477 ).The mutation database Clinvar contains entries for this variant (Variation ID:9326).

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

From Baylor Genetics, SCV004213709.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1unknownunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Nov 3, 2024