rs1345279795

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP6

The NM_004656.4(BAP1):​c.2122C>T​(p.Arg708Trp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000019 in 1,582,150 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. R708Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

BAP1
NM_004656.4 missense

Scores

6
5
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 9.93

Publications

1 publications found
Variant links:
Genes affected
BAP1 (HGNC:950): (BRCA1 associated protein 1) This gene belongs to the ubiquitin C-terminal hydrolase subfamily of deubiquitinating enzymes that are involved in the removal of ubiquitin from proteins. The encoded enzyme binds to the breast cancer type 1 susceptibility protein (BRCA1) via the RING finger domain of the latter and acts as a tumor suppressor. In addition, the enzyme may be involved in regulation of transcription, regulation of cell cycle and growth, response to DNA damage and chromatin dynamics. Germline mutations in this gene may be associated with tumor predisposition syndrome (TPDS), which involves increased risk of cancers including malignant mesothelioma, uveal melanoma and cutaneous melanoma. [provided by RefSeq, May 2013]
BAP1 Gene-Disease associations (from GenCC):
  • BAP1-related tumor predisposition syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Ambry Genetics, G2P, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • Kury-Isidor syndrome
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, G2P
  • renal cell carcinoma
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 3-52402356-G-A is Benign according to our data. Variant chr3-52402356-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 539899.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BAP1NM_004656.4 linkc.2122C>T p.Arg708Trp missense_variant Exon 17 of 17 ENST00000460680.6 NP_004647.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BAP1ENST00000460680.6 linkc.2122C>T p.Arg708Trp missense_variant Exon 17 of 17 1 NM_004656.4 ENSP00000417132.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152228
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000103
AC:
2
AN:
193254
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000129
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000140
AC:
2
AN:
1429804
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
708482
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33146
American (AMR)
AF:
0.00
AC:
0
AN:
39066
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25458
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38526
South Asian (SAS)
AF:
0.00
AC:
0
AN:
82160
European-Finnish (FIN)
AF:
0.0000408
AC:
2
AN:
49028
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5722
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1097402
Other (OTH)
AF:
0.00
AC:
0
AN:
59296
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.675
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152346
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74492
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41576
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.225
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

BAP1-related tumor predisposition syndrome Uncertain:1
Feb 12, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 539899). This variant has not been reported in the literature in individuals affected with BAP1-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 708 of the BAP1 protein (p.Arg708Trp).

Hereditary cancer-predisposing syndrome Benign:1
Jul 03, 2025
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as 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.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Benign
-0.0098
T
BayesDel_noAF
Benign
-0.25
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Benign
0.27
T;.;T
Eigen
Benign
0.12
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.97
D;D;D
M_CAP
Benign
0.038
D
MetaRNN
Uncertain
0.59
D;D;D
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.55
N;.;.
PhyloP100
9.9
PrimateAI
Pathogenic
0.91
D
PROVEAN
Uncertain
-3.7
D;D;D
REVEL
Uncertain
0.32
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0010
D;D;D
Vest4
0.81
ClinPred
0.96
D
GERP RS
4.6
PromoterAI
0.013
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.52
gMVP
0.84
Mutation Taster
=14/86
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1345279795; hg19: chr3-52436372; API