rs755664216
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP6BS2
The NM_004656.4(BAP1):c.1651C>T(p.Arg551Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,613,912 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R551H) has been classified as Likely benign.
Frequency
Consequence
NM_004656.4 missense
Scores
Clinical Significance
Conservation
Publications
- BAP1-related tumor predisposition syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Ambry Genetics, G2P, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
- Kury-Isidor syndromeInheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, G2P
- renal cell carcinomaInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
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ACMG classification
Our verdict: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
BAP1 | NM_004656.4 | c.1651C>T | p.Arg551Cys | missense_variant | Exon 13 of 17 | ENST00000460680.6 | NP_004647.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152210Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000159 AC: 4AN: 251078 AF XY: 0.00000737 show subpopulations
GnomAD4 exome AF: 0.00000958 AC: 14AN: 1461702Hom.: 0 Cov.: 32 AF XY: 0.00000825 AC XY: 6AN XY: 727146 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152210Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74364 show subpopulations
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
This missense variant replaces arginine with cysteine at codon 551 of the BAP1 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual affected with breast/ovarian cancer (PMID: 32068069). This variant has been identified in 4/251078 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. -
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. -
BAP1-related tumor predisposition syndrome Uncertain:1
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 551 of the BAP1 protein (p.Arg551Cys). This variant is present in population databases (rs755664216, gnomAD 0.01%). This missense change has been observed in individual(s) with clinical features of hereditary breast and ovarian cancer syndrome (PMID: 32068069). ClinVar contains an entry for this variant (Variation ID: 485254). 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 BAP1 protein function. 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. -
not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 29122566) -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at