rs370591460
Variant summary
The NM_000059.4(BRCA2):c.5025T>A (p.Cys1675*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant is predicted to lead to nonsense-mediated mRNA decay (NMD). The variant is absent from the gnomAD population database at sites with sufficient sequencing coverage. In-silico predictor (BayesDel (noAF)) classifies this variant as likely damaging/oncogenic. Splicing prediction tools (SpliceAI) predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic/Likely Pathogenic (★).
Frequency
Consequence
NM_000059.4 stop_gained
Scores
Clinical Significance
Conservation
Publications
- BRCA2-related cancer predispositionInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- breast-ovarian cancer, familial, susceptibility to, 2Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
- Fanconi anemia complementation group D1Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
- pancreatic cancer, susceptibility to, 2Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- sarcomaInheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
- hereditary breast ovarian cancer syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Fanconi anemiaInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- medulloblastomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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Classification according to ACMG Germline Pathogenicity v2019
Our verdict: Pathogenic. The variant received 12 points.
| Apply | Criterion Code & Title / Strength | Rationale / Clinical Context | |
|---|---|---|---|
| PVS1Null variant in LOF gene | Frameshift/stop-gained, NMD predicted, LoF disease mechanism — very strong (PVS1); Stop-gained (exon 11 of 27) at amino acid 1675 of 3418, predicted to trigger nonsense-mediated mRNA decay. Loss of function is a known disease mechanism for this gene. | ||
| PM2Absent/extremely low in population databases | Absent from gnomAD (AD/XL gene) — PM2; Absent from gnomAD at well-covered site (MOI: AD+AR) (base 0.0001, raised to 0.000139 by highest known P/LP ClinVar AF 0.000139) — PM2 moderate. | ||
| PP5Reputable source reports pathogenic | ClinVar 1-star pathogenic — moderate (PP5); ClinVar germline classification: Pathogenic/Likely Pathogenic, 1 star(s). |
Variant Effect in Transcripts
Automated classification analysis was done for transcript: NM_000059.4. You can select a different transcript below to see updated classification assignments.
RefSeq Transcripts
| Sel. | Gene / Transcript | Tags | HGVSc / HGVSp | Effect | Exon rank | Protein / UniProt |
|---|---|---|---|---|---|---|
BRCA2 | MANE Select | c.5025T>A p.Cys1675* | stop_gained | Exon 11 of 27 | Prot: NP_000050.3 UniProt: | |
BRCA2 | c.5025T>A p.Cys1675* | stop_gained | Exon 11 of 27 | Prot: NP_001419006.1 UniProt: | ||
BRCA2 | c.5025T>A p.Cys1675* | stop_gained | Exon 11 of 27 | Prot: NP_001393649.1 UniProt: |
Ensembl Transcripts
| Sel. | Gene / Transcript | Tags | HGVSc / HGVSp | Effect | Exon rank | Protein / UniProt |
|---|---|---|---|---|---|---|
BRCA2 | TSL:5MANE Select | c.5025T>A p.Cys1675* | stop_gained | Exon 11 of 27 | Prot: ENSP00000369497.3 UniProt: | |
BRCA2 | TSL:1 | c.5025T>A p.Cys1675* | stop_gained | Exon 11 of 27 | Prot: ENSP00000439902.1 UniProt: | |
BRCA2 | TSL:1 | c.4656T>A p.Cys1552* | stop_gained | Exon 11 of 27 | Prot: ENSP00000499438.2 UniProt: |
Frequencies
Allele frequencies (AF), counts (AC/AN), homozygotes and coverage
| Source / population | AF | AC | Hom | AN | Coverage |
|---|---|---|---|---|---|
Global population databases 3 sources | |||||
GnomAD3 genomes | Cov:33 | ||||
GnomAD4 exome | Cov:45 | ||||
GnomAD4 genome | Cov:33 | ||||
ClinVar
Computational Scores
| Algorithm | Calibrated pred. | Score | Prediction |
|---|---|---|---|
AlphaGenome AVI | Pathogenic | 31 | |
BayesDel_addAF | Pathogenic | 0.37 | D |
BayesDel_noAF | Pathogenic | 0.30 | |
CADD | Pathogenic | 29 | |
DANN | Benign | 0.97 | |
Eigen | Uncertain | 0.25 | |
Eigen_PC | Benign | -0.060 | |
FATHMM_MKL | Benign | 0.19 | N |
GPN-Star LLR | N/A | -4.0 | |
GPN-Star score | N/A | 4.0 | |
Mutation Taster | N/A | 0/200 | disease causing (ClinVar) |
PhyloP100 | Benign | 0.43 |
Splicing Scores
| Algorithm | Calibrated pred. | Score | Prediction |
|---|---|---|---|
Pangolin (max) | Benign | 0.0 | |
SpliceAI score (max) | Benign | 0.0 | Details are displayed if max score is > 0.2 |
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.