rs760887592
Variant summary
Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate
The NM_032043.3(BRIP1):c.2464T>C(p.Tyr822His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,607,178 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y822C) 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_pathogenic. The variant received 6 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| BRIP1 | NM_032043.3 | c.2464T>C | p.Tyr822His | missense_variant | Exon 17 of 20 | ENST00000259008.7 | NP_114432.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| BRIP1 | ENST00000259008.7 | c.2464T>C | p.Tyr822His | missense_variant | Exon 17 of 20 | 1 | NM_032043.3 | ENSP00000259008.2 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152152Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.00000400 AC: 1AN: 250042 AF XY: 0.00000739 show subpopulations
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1455026Hom.: 0 Cov.: 30 AF XY: 0.00000276 AC XY: 2AN XY: 723868 show subpopulations
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152152Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 74330 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
The p.Y822H variant (also known as c.2464T>C), located in coding exon 16 of the BRIP1 gene, results from a T to C substitution at nucleotide position 2464. The tyrosine at codon 822 is replaced by histidine, an amino acid with similar properties. This alteration was detected in 1/101,759 breast cancer cases and 0/15,587 ovarian cancer cases, and in an inter-strand cross link damage survival assay, this alteration was found to be functionally hypomorphic (Moyer CL et al. Cancer Res. 2020 Feb;80:857-867). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
This missense variant replaces tyrosine with histidine at codon 822 of the BRIP1 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function. A functional study has shown that the variant protein partially rescued cells in response to DNA damage in a cell viability assay (PMID: 31822495). This variant has been reported in an individual affected with breast cancer (PMID: 31822495). This variant has been identified in 1/250042 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
Variant summary: BRIP1 c.2464T>C (p.Tyr822His) results in a conservative amino acid change located in the ATP-dependent helicase, C-terminal domain (IPR006555) 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 4e-06 in 250042 control chromosomes (gnomAD). c.2464T>C has been reported in the literature in individuals affected with Breast Cancer without strong evidence of causality (Weber-Lassalle_2018, Moyer_2020). These reports do not provide unequivocal conclusions about association of the variant with Breast Cancer. At least one publication reports experimental evidence evaluating an impact on protein function, finding that the variant does not fully rescue interstrand cross-link activity and was considered hypomorphic (Moyer_2020). The following publications have been ascertained in the context of this evaluation (PMID: 31822495, 29368626). ClinVar contains an entry for this variant (Variation ID: 216788). Based on the evidence outlined above, the variant was classified as VUS-possibly pathogenic. -
Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:1
This sequence change replaces tyrosine, which is neutral and polar, with histidine, which is basic and polar, at codon 822 of the BRIP1 protein (p.Tyr822His). This variant is present in population databases (rs760887592, gnomAD 0.006%). This missense change has been observed in individual(s) with breast cancer (PMID: 29368626, 31822495). ClinVar contains an entry for this variant (Variation ID: 216788). 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) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on BRIP1 protein function. Experimental studies have shown that this missense change affects BRIP1 function (PMID: 31822495). 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. -
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