rs587780233
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_032043.3(BRIP1):c.2038_2039dupTT(p.Leu680PhefsTer9) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,990 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.
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
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152156Hom.: 0 Cov.: 32
GnomAD4 exome AF: 0.00000479 AC: 7AN: 1461834Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5AN XY: 727224
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152156Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74310
ClinVar
Submissions by phenotype
not provided Pathogenic:6
Frameshift 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 significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 25452441, 26921362, 26315354, 26681312, 28152038, 24728327, 26845104, 21964575, 17033622, 32427313, 16116423, 32295079, 33471991, 30254378, 25807282, 33858029, 28888541) -
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This frameshift variant causes the premature termination of BRIP1 protein synthesis. In addition, it has been reported in individuals with breast and/or ovarian cancer in the published literature (PMID: 25452441 (2015), 26681312 (2015), 26315354 (2015), and 26845104 (2016)). Based on the available information, this variant is classified as pathogenic. -
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Hereditary cancer-predisposing syndrome Pathogenic:3
The c.2038_2039dupTT pathogenic mutation, located in coding exon 13 of the BRIP1 gene, results from a duplication of TT at nucleotide position 2038, causing a translational frameshift with a predicted alternate stop codon (p.L680Ffs*9). This mutation has been reported in multiple breast and/or ovarian cancer patients (Ramus SJ et al. J Natl Cancer Inst, 2015 Nov;107; Couch FJ et al. J Clin Oncol, 2015 Feb;33:304-11; Shirts BH et al. Genet Med, 2016 10;18:974-81; Easton DF et al. J Med Genet, 2016 05;53:298-309; Susswein LR et al. Genet Med, 2016 08;18:823-32; Dorling et al. N Engl J Med. 2021 02;384:428-439), and has also been detected in healthy individuals undergoing multigene panel testing (Sulem P et al. Nat Genet, 2015 May;47:448-52; Rowley SM et al. Genet Med, 2019 04;21:913-922; Dorling et al. N Engl J Med. 2021 02;384:428-439). This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). In addition to the clinical data presented in the literature, this alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation. -
This variant inserts 2 nucleotides in exon 14 of the BRIP1 gene, creating a frameshift and 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 individuals affected with breast and ovarian cancer (PMID: 25452441, 26315354, 26681312, 26845104, 26921362, 33471991) as well as in unaffected individuals (PMID: 30254378, 33471991). This variant has not been identified 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 Pathogenic. -
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Familial cancer of breast;C1836860:Fanconi anemia complementation group J Pathogenic:2
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This sequence change creates a premature translational stop signal (p.Leu680Phefs*9) in the BRIP1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in BRIP1 are known to be pathogenic (PMID: 16116423, 17033622, 21964575). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with breast or ovarian cancer (PMID: 21964575, 25452441, 26315354, 26681312, 26845104). This variant is also known as c.2040_ 2041insTT. ClinVar contains an entry for this variant (Variation ID: 128166). For these reasons, this variant has been classified as Pathogenic. -
Familial cancer of breast Pathogenic:2
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This variant is considered pathogenic. This variant creates a frameshift predicted to result in premature protein truncation. -
Breast and/or ovarian cancer Pathogenic:1
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Fanconi anemia complementation group J Pathogenic:1
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Ovarian neoplasm Pathogenic:1
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Uterine corpus cancer Pathogenic:1
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not specified Other:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at