rs80358785
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_000059.4(BRCA2):c.5645C>A(p.Ser1882*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000822 in 1,460,314 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★★). Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_000059.4 stop_gained
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
BRCA2 | ENST00000380152.8 | c.5645C>A | p.Ser1882* | stop_gained | Exon 11 of 27 | 5 | NM_000059.4 | ENSP00000369497.3 | ||
BRCA2 | ENST00000530893.7 | c.5276C>A | p.Ser1759* | stop_gained | Exon 11 of 27 | 1 | ENSP00000499438.2 | |||
BRCA2 | ENST00000614259.2 | n.5645C>A | non_coding_transcript_exon_variant | Exon 10 of 26 | 2 | ENSP00000506251.1 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 exomes AF: 0.0000160 AC: 4AN: 249416Hom.: 0 AF XY: 0.0000222 AC XY: 3AN XY: 134860
GnomAD4 exome AF: 0.00000822 AC: 12AN: 1460314Hom.: 0 Cov.: 45 AF XY: 0.00000826 AC XY: 6AN XY: 726310
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Breast-ovarian cancer, familial, susceptibility to, 2 Pathogenic:11
- -
- -
The c.5645C>A (p.Ser1882*) variant in the BRCA2 gene is predicted to introduce a premature translational termination codon. This variant has been reported in multiple families affected with Hereditary Breast and Ovarian Cancer (PMID 10550133, 22144684, 28324225) and has also been reported in individuals affected with triple negative breast cancer (PMID 22666503), ovarian cancer (PMID 26439132) or metastatic prostate cancer (PMID 27433846). This variant is extremely rare in general population. Therefore, this c.5645C>A (p.Ser1882*) variant in the BRCA2 gene is classified as pathogenic. -
- -
- -
Variant allele predicted to encode a truncated non-functional protein. -
- -
- -
- -
- -
- -
not provided Pathogenic:9Uncertain:1
- -
Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Not observed at a significant frequency in large population cohorts (gnomAD); Truncating variants in this gene are considered pathogenic by a well-established clinical consortium and/or database; This variant is associated with the following publications: (PMID: 25682074, 30287823, 30430080, 29339979, 29446198, 30093976, 31263054, 15689453, 10660329, 22144684, 22535016, 22666503, 21952622, 22009639, 26439132, 26221963, 26064523, 25863477, 25802882, 27225637, 25525159, 24916970, 24249303, 27533253, 27836010, 26733283, 27271530, 27767231, 15131399, 26848529, 27433846, 28283652, 28324225, 28259476, 29084914, 28724667, 28993434, 28715532, 29215753, 29659587, 29346284, 30274973, 30078507, 30720243, 30702160, 30322717, 27257965, 32467295, 11597388, 32318955, 31447099, 32853339, 32341426, 31825140, 32710294, 30875412, 33608381, 30787465, 31742824) -
- -
- -
This nonsense variant causes the premature termination of BRCA2 protein synthesis. In addition, it has been reported in individuals with breast or prostate cancer in the published literature (PMID: 33918338 (2020), 27433846 (2016) and 22666503 (2012)). Based on the available information, this variant is classified as pathogenic. -
- -
PVS1, PS4, PM2_SUP -
- -
- -
BRCA2: PVS1, PM2, PS4:Moderate -
Hereditary breast ovarian cancer syndrome Pathogenic:5
The p.Ser1882X variant in BRCA2 has been reported in >60 individuals with BRCA2- associated cancers and segregated with disease in 2 affected relatives from 2 fa milies (Caputo 2012, De Silva 2017, Heidemann2012, Rebbeck 2016, Reid 2005). Thi s variant has also been identified in 1/17202 East Asian and 2/110946 European c hromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstit ute.org; dbSNP rs80358785). This nonsense variant leads to a premature terminati on codon at position 1882, which is predicted to lead to a truncated or absent p rotein. Heterozygous loss of function of the BRCA2 gene is an established diseas e mechanism in hereditary breast and ovarian cancer (HBOC). In addition, this va riant was classified as Pathogenic on April 22, 2016 by the ClinGen-approved ENI GMA expert panel (ClinVar SCV000282410.1). In summary, this variant meets criter ia to be classified as pathogenic for HBOC in an autosomal dominant manner based upon predicted impact to the protein, absence in the general population and pre sence in multiple affected individuals. ACMG/AMP Criteria applied: PVS1; PS4; PM 2 (Richards 2015). -
Variant summary: The BRCA2 c.5645C>A (p.Ser1882X) variant results in a premature termination codon, predicted to cause a truncated or absent BRCA2 protein due to nonsense mediated decay, which are commonly known mechanisms for disease. The variant of interest was observed in the large, broad control population, ExAC, with an allele frequency of 3/120628 (1/40160, 0.0000249), which does not exceed the estimated maximal expected allele frequency for a pathogenic BRCA2 variant of 1/1333 (0.0007503). In addition, it needs to be noted that these three occurrences need to be cautiously considered due to the fact that the ExAC cohort contains individuals that could harbor a BRCA2 phenotype. However, multiple affected individuals have been reported via publications, along with numerous reputable databases/clinical laboratories citing the variant as "pathogenic." Therefore, the variant of interest has been classified as Pathogenic. -
This sequence change creates a premature translational stop signal (p.Ser1882*) 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 (rs80358785, gnomAD 0.006%). This premature translational stop signal has been observed in individual(s) with breast, ovarian and prostate cancer (PMID: 15024741, 21952622, 22144684, 22535016, 22666503). This variant is also known as 5873C>A. ClinVar contains an entry for this variant (Variation ID: 37984). For these reasons, this variant has been classified as Pathogenic. -
- -
- -
Familial cancer of breast Pathogenic:4
- -
This variant is a single amino acid change from Serine to a Termination codon at amino acid residue 1882 of the BRCA2 gene. It is expected to result in a truncated, non-functional protein. Truncating variants in the BRCA2 gene are known to be pathogenic. This variant is also known as 5873C>A in the literature and has been described in patients and families with breast, ovarian and prostate cancer (PMID: 22144684, 22535016, 22666503, 21952622, 15024741). The mutation database ClinVar contains entries for this variant (Variation ID: 37984). -
Criteria applied: PVS1,PM5_STR,PM2_SUP -
- -
Breast and/or ovarian cancer Pathogenic:3
- -
- -
- -
Hereditary cancer-predisposing syndrome Pathogenic:3
- -
The c.5645C>A (p.S1882*) alteration, located in exon 11 (coding exon 10) of the BRCA2 gene, consists of a C to A substitution at nucleotide position 5645. This changes the amino acid from a serine (S) to a stop codon at amino acid position 1882. This alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. Based on data from gnomAD, the A allele has an overall frequency of 0.002% (4/249416) total alleles studied. The highest observed frequency was 0.006% (1/18348) of East Asian alleles. This variant has been reported in an individual diagnosed with triple negative breast cancer at age 37 (Meyer, 2012), in two individuals with ovarian cancer (Sakamoto, 2016), and in a family with multiple cases of breast cancer (Verhoog, 1999). In another study, this variant was reported as an Eastern European founder mutation (Caputo, 2012). This variant has also been detected in a cohort of affected patients meeting genetic testing criteria for HBOC (Meisel, 2017), a cohort of patients with metastatic prostate cancer (Pritchard, 2016), as well as in multiple cohorts of unselected breast cancer patients (Sun, 2017; Zhong, 2016). In a large, clinic-based BRCA1/2 testing cohort in Norway, this variant was detected in 7 members of one family (Heramb, 2018). Based on the available evidence, this alteration is classified as pathogenic. -
This variant changes 1 nucleotide in exon 11 of the BRCA2 gene, creating a premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. This variant has been reported in at least 12 individuals affected with breast and/or ovarian cancer (PMID: 15024741, 15689453, 20104584, 22535016, 22666503, 26439132, 27257965, 28039656, 28724667, 30287823, 33471991; Leiden Open Variation Database DB-ID BRCA2_000141) and four individuals affected with prostate cancer (PMID: 27433846, 31214711). This variant also has been reported in two siblings who were compound heterozygous carriers with a second pathogenic BRCA2 variant and were both affected with Wilms tumor (PMID: 15689453). This variant has been identified in 4/249416 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of BRCA2 function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Pathogenic. -
Medulloblastoma;C0346153:Familial cancer of breast;C0376358:Malignant tumor of prostate;C1838457:Fanconi anemia complementation group D1;C2675520:Breast-ovarian cancer, familial, susceptibility to, 2;C2751641:Glioma susceptibility 3;C3150546:Pancreatic cancer, susceptibility to, 2;CN033288:Wilms tumor 1 Pathogenic:1
- -
Malignant tumor of prostate;C4763838:Metastatic Prostate Small Cell Carcinoma Pathogenic:1
This BRCA2 variant (rs80358785) has been found in 65 year-old man with a germline BRCA2 mutation who developed explosive treatment-emergent, small-cell neuroendocrine prostate cancer. -
BRCA2-related cancer predisposition Pathogenic:1
This variant changes 1 nucleotide in exon 11 of the BRCA2 gene, creating a premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in at least 12 individuals affected with breast and/or ovarian cancer (PMID: 15024741, 15689453, 20104584, 22535016, 22666503, 26439132, 27257965, 28039656, 28724667, 30287823, 33471991; Leiden Open Variation Database DB-ID BRCA2_000141) and four individuals affected with prostate cancer (PMID: 27433846, 31214711). This variant also has been reported in two siblings who were compound heterozygous carriers with a second pathogenic BRCA2 variant and were both affected with Wilms tumor (PMID: 15689453). This variant has been identified in 4/249416 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of BRCA2 function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Pathogenic. -
Breast neoplasm Pathogenic:1
- -
Gastric cancer Pathogenic:1
- -
Ovarian neoplasm Pathogenic:1
- -
Breast carcinoma Pathogenic:1
_x000D_ Criteria applied: PVS1, PS4, PM2_SUP -
not specified Pathogenic:1
The BRCA2 c.5645C>A; p.Ser1882Ter variant (rs80358785), also known as 5873C>A, is reported in several individuals with hereditary breast and ovarian cancer syndrome and is described as a founder mutation in the Eastern European population (Caputo 2012, Heramb 2018, Meisel 2017, Momozawa 2018). It has also been reported in two brothers with Wilms tumor and brain tumors, who also carry an additional truncating variant in trans (Reid 2005). This variant is reported as pathogenic by multiple laboratories in ClinVar (Variation ID: 37984). It is found in the general population with a low overall allele frequency of 0.002% (4/249416 alleles) in the Genome Aggregation Database. This variant induces an early termination codon and is predicted to result in a truncated protein or mRNA subject to nonsense-mediated decay. Based on available information, this variant is considered to be pathogenic. REFERENCES Caputo S et al. Description and analysis of genetic variants in French hereditary breast and ovarian cancer families recorded in the UMD-BRCA1/BRCA2 databases. Nucleic Acids Res. 2012 Jan;40(Database issue):D992-1002. Heramb C et al. BRCA1 and BRCA2 mutation spectrum - an update on mutation distribution in a large cancer genetics clinic in Norway. Hered Cancer Clin Pract. 2018 Jan 10;16:3. Meisel C et al. Spectrum of genetic variants of BRCA1 and BRCA2 in a German single center study. Arch Gynecol Obstet. 2017 May;295(5):1227-1238. Momozawa Y et al. Germline pathogenic variants of 11 breast cancer genes in 7,051 Japanese patients and 11,241 controls. Nat Commun. 2018 Oct 4;9(1):4083. Reid S et al. Biallelic BRCA2 mutations are associated with multiple malignancies in childhood including familial Wilms tumour. J Med Genet. 2005 Feb;42(2):147-51. -
BRCA2-related disorder Other:1
Variant interpreted as Pathogenic and reported on 05-19-2017 by Lab Myriad Genetics. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at