NM_000059.4(BRCA2):c.2808del (p.Lys936fs) AND Hereditary breast ovarian cancer syndrome

Germline classification:: Pathogenic (2 submissions)
Last evaluated:: Dec 13, 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:: RCV000204896.19

Allele description [Variation Report for NM_000059.4(BRCA2):c.2808del (p.Lys936fs)]

NM_000059.4(BRCA2):c.2808del (p.Lys936fs)

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.2808del (p.Lys936fs)

HGVS:

NC_000013.11:g.32337163del
NG_012772.3:g.26684del
NM_000059.4:c.2808delMANE SELECT
NP_000050.3:p.Lys936fs
LRG_293:g.26684del
NC_000013.10:g.32911298del
NC_000013.10:g.32911300del
NM_000059.3:c.2808delA
NM_000059.4:c.2808del
p.K936NFS*24
p.Lys936Asnfs*24

Nucleotide change:

3036delA

Links:

dbSNP: rs398122753

NCBI 1000 Genomes Browser:

rs398122753

Molecular consequence:

NM_000059.4:c.2808del - frameshift variant - [Sequence Ontology: SO:0001589]

Condition(s)

Name:: Hereditary breast ovarian cancer syndrome
Synonyms:: Hereditary breast and ovarian cancer syndrome; Hereditary breast and ovarian cancer; Hereditary breast and ovarian cancer syndrome (HBOC); See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0003582; MeSH: D061325; MedGen: C0677776; Orphanet: 145

Recent activity

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Mus musculus STARD3 N-terminal like (Stard3nl), transcript variant 2, mRNA
Mus musculus STARD3 N-terminal like (Stard3nl), transcript variant 2, mRNA
gi|1108846946|ref|NM_001347485.1|

Nucleotide
Mus musculus SRY-box containing gene 3 (Sox3), mRNA
Mus musculus SRY-box containing gene 3 (Sox3), mRNA
gi|6678070|ref|NM_009237.1|

Nucleotide

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000259252	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Pathogenic (Dec 13, 2023)	germline	clinical testing	PubMed (4) [See all records that cite these PMIDs] 20104584, 25428789, 26296701, 28492532
SCV000918844	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	criteria provided, single submitter (LabCorp Variant Classification Summary - May 2015)	Pathogenic (May 9, 2022)	germline	clinical testing	PubMed (4) [See all records that cite these PMIDs] 16912212, 25428789, 25186627, 26296701 Citation Link

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000259252

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Pathogenic
(Dec 13, 2023)

germline

clinical testing

PubMed (4)
[See all records that cite these PMIDs]

SCV000918844

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

criteria provided, single submitter

(LabCorp Variant Classification Summary - May 2015)

Pathogenic
(May 9, 2022)

germline

clinical testing

PubMed (4)
[See all records that cite these PMIDs]

Citation Link

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Characterization of BRCA1 and BRCA2 deleterious mutations and variants of unknown clinical significance in unilateral and bilateral breast cancer: the WECARE study.

Borg A, Haile RW, Malone KE, Capanu M, Diep A, Törngren T, Teraoka S, Begg CB, Thomas DC, Concannon P, Mellemkjaer L, Bernstein L, Tellhed L, Xue S, Olson ER, Liang X, Dolle J, Børresen-Dale AL, Bernstein JL.

Hum Mutat. 2010 Mar;31(3):E1200-40. doi: 10.1002/humu.21202.

PubMed [citation]

PMID:: 20104584
PMCID:: PMC2928257

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

See all PubMed Citations (6)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000259252.7

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (4)

Description

This sequence change creates a premature translational stop signal (p.Lys936Asnfs*24) in the BRCA2 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in BRCA2 are known to be pathogenic (PMID: 20104584). This variant is present in population databases (rs398122753, gnomAD 0.01%). This premature translational stop signal has been observed in individual(s) with breast cancer (PMID: 25428789, 26296701). This variant is also known as 3036delA. ClinVar contains an entry for this variant (Variation ID: 91787). For these reasons, this variant has been classified as Pathogenic.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Women's Health and Genetics/Laboratory Corporation of America, LabCorp, SCV000918844.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (4)

Description

Variant summary: BRCA2 c.2808delA (p.Lys936AsnfsX24) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Truncations downstream of this position have been classified as pathogenic by our laboratory. The variant was absent in 251774 control chromosomes. c.2808delA has been reported in the literature in individuals affected with Hereditary Breast and Ovarian Cancer (Malone 2006, Tung 2015, Churpek 2015, Ellingson 2015). These data indicate that the variant is likely to be associated with disease. Seven clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Oct 26, 2024

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