rs61757643
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_032043.3(BRIP1):c.485G>T(p.Arg162Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,613,424 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 Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_032043.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 3 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000132 AC: 2AN: 152010Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000796 AC: 2AN: 251330Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135828
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461296Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727000
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152128Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74368
ClinVar
Submissions by phenotype
Familial cancer of breast Uncertain:2
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. -
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Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
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. -
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not specified Uncertain:1
Variant summary: BRIP1 c.485G>T (p.Arg162Leu) results in a non-conservative amino acid change located in the Helicase-like, DEXD box c2 type domain of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 8e-06 in 251330 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.485G>T in individuals affected with Breast Cancer and no experimental evidence demonstrating its impact on protein function have been reported. Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -
Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:1
This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 162 of the BRIP1 protein (p.Arg162Leu). This variant is present in population databases (rs61757643, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with BRIP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 142492). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt BRIP1 protein function with a negative predictive value of 95%. RNA analysis performed to evaluate the impact of this missense change on mRNA splicing indicates it does not significantly alter splicing (internal data). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Ovarian neoplasm;C1836860:Fanconi anemia complementation group J Uncertain:1
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not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; In silico analysis is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; This variant is associated with the following publications: (PMID: 11301010) -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at