rs764406913
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_032043.3(BRIP1):c.2686A>G(p.Ile896Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,848 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I896L) has been classified as Uncertain significance.
Frequency
Consequence
NM_032043.3 missense
Scores
Clinical Significance
Conservation
Publications
- familial ovarian cancerInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- Fanconi anemiaInheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Illumina
- Fanconi anemia complementation group JInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
- hereditary breast carcinomaInheritance: AD Classification: STRONG, LIMITED, NO_KNOWN Submitted by: ClinGen, Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
- colorectal adenomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152186Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000318 AC: 8AN: 251308 AF XY: 0.0000442 show subpopulations
GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461662Hom.: 0 Cov.: 53 AF XY: 0.00000550 AC XY: 4AN XY: 727136 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152186Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74350 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
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In silico analysis indicates that this missense variant does not alter protein structure/function; Observed in at least one individual with breast cancer (PMID: 30982232); Reported as a germline variant in a patient with biliary tract cancer (PMID: 36243179); This variant is associated with the following publications: (PMID: 27093186, 30998136, 32984025, 11301010, 30982232, 36243179) -
Hereditary cancer-predisposing syndrome Benign:2
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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Breast and/or ovarian cancer Uncertain:1
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Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:1
This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 896 of the BRIP1 protein (p.Ile896Val). This variant is present in population databases (rs764406913, gnomAD 0.03%). This missense change has been observed in individual(s) with acute myeloid leukemia (PMID: 30998136). ClinVar contains an entry for this variant (Variation ID: 232249). 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%. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at