rs778628881
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 1P and 1B. PP2BS2_Supporting
The NM_004656.4(BAP1):c.1633C>T(p.Arg545Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,613,966 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_004656.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
BAP1 | NM_004656.4 | c.1633C>T | p.Arg545Cys | missense_variant | Exon 13 of 17 | ENST00000460680.6 | NP_004647.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152220Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251146Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135754
GnomAD4 exome AF: 0.00000684 AC: 10AN: 1461746Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4AN XY: 727164
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152220Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74364
ClinVar
Submissions by phenotype
BAP1-related tumor predisposition syndrome Uncertain:2
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 545 of the BAP1 protein (p.Arg545Cys). This variant is present in population databases (rs778628881, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with BAP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 412423). 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 not expected to disrupt BAP1 protein function with a negative predictive value of 80%. 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. -
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Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces arginine with cysteine at codon 545 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 not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 1/251146 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. -
The p.R545C variant (also known as c.1633C>T), located in coding exon 13 of the BAP1 gene, results from a C to T substitution at nucleotide position 1633. The arginine at codon 545 is replaced by cysteine, an amino acid with highly dissimilar properties. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at