17-61861471-C-T
Variant summary
Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6_Very_StrongBP7
The NM_032043.3(BRIP1):c.69G>A(p.Pro23Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000062 in 1,612,254 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P23P) has been classified as Likely benign.
Frequency
Consequence
NM_032043.3 synonymous
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: Benign. The variant received -11 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| BRIP1 | NM_032043.3 | c.69G>A | p.Pro23Pro | synonymous_variant | Exon 2 of 20 | ENST00000259008.7 | NP_114432.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| BRIP1 | ENST00000259008.7 | c.69G>A | p.Pro23Pro | synonymous_variant | Exon 2 of 20 | 1 | NM_032043.3 | ENSP00000259008.2 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152122Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000438 AC: 11AN: 251290 AF XY: 0.0000589 show subpopulations
GnomAD4 exome AF: 0.0000644 AC: 94AN: 1460132Hom.: 0 Cov.: 30 AF XY: 0.0000633 AC XY: 46AN XY: 726478 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152122Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3AN XY: 74284 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Benign:3
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This variant is associated with the following publications: (PMID: 29361001) -
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. -
Familial cancer of breast;C1836860:Fanconi anemia complementation group J Benign:1
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BRIP1-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Malignant tumor of breast Benign:1
The BRIP1 p.Pro23= variant was not identified in the literature nor was it identified in the Cosmic, and Zhejiang Colon Cancer Database. The variant was identified in dbSNP (ID: rs45458996) “With Likely benign allele”, ClinVar (classified as likely benign by Ambry Genetics, GeneDx and Invitae), Clinvitae (3x) and in control databases in 11 of 246076 chromosomes at a frequency of 0.00005 increasing the likelihood this could be a low frequency variant (Genome Aggregation Consortium Feb 27, 2017). Breakdown of the observations by population include African in 1 of 15298 chromosomes (freq: 0.00007), European Non-Finnish in 7 of 111610 chromosomes (freq: 0.00006), and South Asian in 3 of 30778 chromosomes (frequency: 0.0001) while the variant was not observed in the African, Latino, Ashkenazi Jewish, East Asian, and European Finnish, populations. The p.Pro23= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at