17-61683868-C-T
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_032043.3(BRIP1):c.3178G>A(p.Val1060Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,614,050 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★★).
Frequency
Consequence
NM_032043.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152180Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000795 AC: 2AN: 251440Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135888
GnomAD4 exome AF: 0.0000109 AC: 16AN: 1461870Hom.: 0 Cov.: 34 AF XY: 0.00000963 AC XY: 7AN XY: 727230
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152180Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74334
ClinVar
Submissions by phenotype
Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:2
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This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 1060 of the BRIP1 protein (p.Val1060Ile). This variant is present in population databases (rs149016505, gnomAD 0.006%). This missense change has been observed in individual(s) with breast cancer (PMID: 26921362). ClinVar contains an entry for this variant (Variation ID: 461140). 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. -
Hereditary cancer-predisposing syndrome Uncertain:2
The p.V1060I variant (also known as c.3178G>A), located in coding exon 19 of the BRIP1 gene, results from a G to A substitution at nucleotide position 3178. The valine at codon 1060 is replaced by isoleucine, an amino acid with highly similar properties. This variant has been reported in patients with breast cancer (Tung N et al. Cancer. 2015 Jan;121:25-33; Easton DF et al. J. Med. Genet. 2016 05;53:298-309). This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
This missense variant replaces valine with isoleucine at codon 1060 of the BRIP1 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been performed for this variant. This variant has been reported in individuals affected with breast cancer (PMID: 25186627, 26921362). This variant has also been identified in 2/251440 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
not specified Uncertain:1
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not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 25186627, 11301010, 26921362, 36243179, 32283892, 35402282) -
Familial cancer of breast Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at