rs1342519012
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_032043.3(BRIP1):βc.3072delβ(p.Ser1025HisfsTer34) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,868 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (β β ). Synonymous variant affecting the same amino acid position (i.e. G1024G) has been classified as Likely benign.
Frequency
Consequence
NM_032043.3 frameshift
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BRIP1 | NM_032043.3 | c.3072del | p.Ser1025HisfsTer34 | frameshift_variant | 20/20 | ENST00000259008.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BRIP1 | ENST00000259008.7 | c.3072del | p.Ser1025HisfsTer34 | frameshift_variant | 20/20 | 1 | NM_032043.3 | P2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 exomes AF: 0.00000795 AC: 2AN: 251440Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135890
GnomAD4 exome AF: 0.00000479 AC: 7AN: 1461868Hom.: 0 Cov.: 34 AF XY: 0.00000413 AC XY: 3AN XY: 727228
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Pathogenic:2
Likely pathogenic, criteria provided, single submitter | clinical testing | Ambry Genetics | Apr 29, 2024 | The c.3072delG variant, located in coding exon 19 of the BRIP1 gene, results from a deletion of one nucleotide at nucleotide position 3072, causing a translational frameshift with a predicted alternate stop codon (p.S1025Hfs*34). Premature stop codons are typically deleterious in nature, however, this stop codon occurs at the 3' terminus of BRIP1, is not expected to trigger nonsense-mediated mRNA decay, and removes the last 191 amino acids of the protein. The exact functional impact of these removed amino acids is unknown at this time; however, the C-terminal region of the protein has been shown by structural, biochemical, and mutational analysis to be relevant for the protein function (Leung CC et al. J. Biol. Chem. 2011 Feb; 286(6):4292-301. Xie J et al. PLoS Genet. 2012 Jul; 8(7):e1002786; Gong Z et al. Mol. Cell, 2010 Feb;37:438-46). Based on the majority of available evidence to date, this variant is likely to be pathogenic. - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Mar 27, 2023 | This variant deletes 1 nucleotide in exon 20 of the BRIP1 gene, creating a frameshift at codon 1025 and premature translation stop signal at codon 1059 in the last coding exon. This mutant transcript is predicted to escape nonsense-mediated decay and be expressed as a truncated protein. This variant is predicted to truncate the carboxyl-terminus including domains involved in BRCA1-binding, DNA damage and replication stress responses and attenuation of DNA damage tolerance pathway in vitro (PMID: 11301010, 14983014, 20159562, 20173781, 22792074). This variant has been reported in individuals affected with breast cancer (PMID: 29752822, 34793666, 34897210), gastric cancer (PMID: 25877891), Peutz-Jeghers syndrome (PMID: 34754157), and upper tract urothelial carcinoma (PMID: 36630951). This variant has been identified in 2/251440 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Loss of BRIP1 function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Likely Pathogenic. - |
Familial cancer of breast;C1836860:Fanconi anemia complementation group J Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Invitae | Nov 27, 2023 | This sequence change creates a premature translational stop signal (p.Ser1025Hisfs*34) in the BRIP1 gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 225 amino acid(s) of the BRIP1 protein. This variant is present in population databases (no rsID available, gnomAD 0.01%). This premature translational stop signal has been observed in individual(s) with gastric cancer, biliary tract cancer, and upper tract urothelial carcinoma (PMID: 25877891, 29752822, 36243179, 36630951). This variant is also known as p.G1024fs. ClinVar contains an entry for this variant (Variation ID: 461045). This variant disrupts the TopBP1-binding region of the BRIP1 protein, which plays a critical role in RPA chromatin loading and the activation of the replication checkpoint in response to DNA damage (PMID: 20159562, 21127055). While functional studies have not been performed to directly test the effect of this variant on BRIP1 protein function, this suggests that disruption of this region of the protein is causative of disease. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. - |
Gastric cancer Pathogenic:1
Pathogenic, no assertion criteria provided | research | Laboratory for Genotyping Development, RIKEN | Jul 01, 2021 | - - |
not provided Pathogenic:1
Pathogenic, no assertion criteria provided | curation | Leiden Open Variation Database | Aug 13, 2019 | Curator: Arleen D. Auerbach. Submitter to LOVD: Yukihide Momozawa. - |
Hereditary breast ovarian cancer syndrome Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Oct 06, 2022 | Variant summary: BRIP1 c.3072delG (p.Ser1025HisfsX34) 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 likely pathogenic by our laboratory. The variant allele was found at a frequency of 8e-06 in 251440 control chromosomes (gnomAD). c.3072delG has been reported in the literature in individuals affected with Breast or Gastric Cancer (Jones_2015, Li_2018, Park_2021). These data indicate that the variant may be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Four ClinVar submitters (evaluation after 2014) cite the variant as uncertain significance (n=1), likely pathogenic (n=2) and pathogenic (n=1). Based on the evidence outlined above, the variant was classified as likely pathogenic. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at