17-61683897-G-T
Variant summary
Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2
The NM_032043.3(BRIP1):c.3149C>A(p.Thr1050Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000688 in 1,614,186 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_032043.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -9 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152188Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000127 AC: 32AN: 251458Hom.: 1 AF XY: 0.000162 AC XY: 22AN XY: 135898
GnomAD4 exome AF: 0.0000739 AC: 108AN: 1461880Hom.: 2 Cov.: 34 AF XY: 0.000106 AC XY: 77AN XY: 727242
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152306Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3AN XY: 74484
ClinVar
Submissions by phenotype
not provided Uncertain:2
In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 27978560, 28135145, 24838835, 25186627, 21279724, 29470806, Ceylan_2021, 11301010) -
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not specified Uncertain:1Benign:1
Variant summary: BRIP1 c.3149C>A (p.Thr1050Asn) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 6.9e-05 in 1614186 control chromosomes in the gnomAD database (v4.1 dataset), including 2 homozygotes. The variant was observed predominantly within the South Asian subpopulation at a frequency of 0.00085, which is approximately 13.6 fold of the estimated maximal expected allele frequency for a pathogenic variant in BRIP1 causing Hereditary Breast And Ovarian Cancer Syndrome phenotype (6.3e-05). The variant, c.3149C>A, has been reported in the literature in individuals affected with breast-/ovarian cancer and other tumor phenotypes (e.g. Singh_2018, Moyer_2020, Sahin_2022), however in at least one of these patients a co-occurrence with an (unspecified) pathogenic BRCA1/2 mutation was noted (Moyer_2020). To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 29470806, 31822495, 35089076). ClinVar contains an entry for this variant (Variation ID: 140825). Based on the evidence outlined above, the variant was classified as likely benign. -
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Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:1Benign:1
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Hereditary cancer-predisposing syndrome Benign:2
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This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Ovarian neoplasm;C1836860:Fanconi anemia complementation group J Uncertain:1
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Familial ovarian cancer Uncertain:1
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Familial cancer of breast Uncertain:1
This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at