rs202228407
Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_032043.3(BRIP1):c.3099T>C(p.Pro1033Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000139 in 1,614,152 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_032043.3 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -21 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000125 AC: 19AN: 152158Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000756 AC: 190AN: 251452Hom.: 2 AF XY: 0.000515 AC XY: 70AN XY: 135898
GnomAD4 exome AF: 0.000140 AC: 205AN: 1461876Hom.: 2 Cov.: 34 AF XY: 0.000106 AC XY: 77AN XY: 727240
GnomAD4 genome AF: 0.000125 AC: 19AN: 152276Hom.: 0 Cov.: 32 AF XY: 0.000121 AC XY: 9AN XY: 74450
ClinVar
Submissions by phenotype
not provided Benign:4
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Variant summary: The BRIP1 c.3099T>C (p.Pro1033Pro) variant involves the alteration of a non-conserved nucleotide, resulting in a synonymous change. One in silico tool predicts a benign outcome for this variant. 5/5 splice prediction tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. This variant was found in 75/121402 control chromosomes (2 homozygotes), predominantly observed in the Latino subpopulation at a frequency of 0.0064778 (75/11578). This frequency is about 104 times the estimated maximal expected allele frequency of a pathogenic BRIP1 variant (0.0000625), suggesting this is likely a benign polymorphism found primarily in the populations of Latino origin. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as benign/likely benign. The variant of interest has not, to our knowledge, been reported in affected individuals via publications nor evaluated for functional impact by in vivo/vitro studies. Taken together, this variant is classified as benign. -
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Hereditary cancer-predisposing syndrome Benign:3
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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. -
not specified Benign:2
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Familial cancer of breast;C1836860:Fanconi anemia complementation group J Benign:2
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Fanconi anemia complementation group J Benign:2
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This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Familial cancer of breast Benign:1
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
Ovarian neoplasm Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at