17-61793624-G-C
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_032043.3(BRIP1):āc.1446C>Gā(p.Ile482Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,455,454 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 Uncertain significance (ā ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I482V) has been classified as Uncertain significance.
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
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BRIP1 | NM_032043.3 | c.1446C>G | p.Ile482Met | missense_variant | 10/20 | ENST00000259008.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BRIP1 | ENST00000259008.7 | c.1446C>G | p.Ile482Met | missense_variant | 10/20 | 1 | NM_032043.3 | P2 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome AF: 6.87e-7 AC: 1AN: 1455454Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0AN XY: 723612
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Apr 09, 2019 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 17, 2022 | The p.I482M variant (also known as c.1446C>G), located in coding exon 9 of the BRIP1 gene, results from a C to G substitution at nucleotide position 1446. The isoleucine at codon 482 is replaced by methionine, an amino acid with highly similar properties. This variant was identified in a cohort of 882 Chinese individuals with a personal and/or family history of breast or ovarian cancers who underwent multi-gene panel testing for HBOC risk assessment (Shao D et al. Cancer Sci, 2020 Feb;111:647-657). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Apr 28, 2023 | This variant is not present in population databases (gnomAD no frequency). This sequence change replaces isoleucine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 482 of the BRIP1 protein (p.Ile482Met). This variant has not been reported in the literature in individuals affected with BRIP1-related conditions. 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt BRIP1 protein function. ClinVar contains an entry for this variant (Variation ID: 216786). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at