3-52406899-C-T

Variant names:

• chr3-52406899-C-T
• rs1060503739
• NM_004656.4:c.589G>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 4P and 2B. PM1 PM2 BP4 BP6

The NM_004656.4(BAP1):​c.589G>A​(p.Gly197Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000705 in 1,419,322 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 Conflicting classifications of pathogenicity (no stars). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G197V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: BAP1 NM_004656.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:1
• Conservation: PhyloP100: 7.87
• Publications: 0 publications found

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: Genomics England PanelApp, ClinGen, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
• 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

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM1: In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 24 uncertain in NM_004656.4
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.31551155).
• BP6: Variant 3-52406899-C-T is Benign according to our data. Variant chr3-52406899-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 841195.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004656.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BAP1	NM_004656.4	MANE Select	c.589G>A	p.Gly197Arg	missense	Exon 8 of 17	NP_004647.1	Q92560
	BAP1	NM_001410772.1		c.589G>A	p.Gly197Arg	missense	Exon 8 of 17	NP_001397701.1	F8W6N3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BAP1	ENST00000460680.6	TSL:1 MANE Select	c.589G>A	p.Gly197Arg	missense	Exon 8 of 17	ENSP00000417132.1	Q92560
	BAP1	ENST00000296288.9	TSL:5	c.589G>A	p.Gly197Arg	missense	Exon 8 of 17	ENSP00000296288.5	F8W6N3
	BAP1	ENST00000471532.5	TSL:5	n.304G>A		non_coding_transcript_exon	Exon 4 of 5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.05e-7 AC: 1 AN: 1419322 Hom.: 0 Cov.: 32 AF XY: 0.00000142 AC XY: 1 AN XY: 701870

African (AFR) AF: 0.00 AC: 0 AN: 32488

American (AMR) AF: 0.00 AC: 0 AN: 38612

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25412

East Asian (EAS) AF: 0.00 AC: 0 AN: 37346

South Asian (SAS) AF: 0.00 AC: 0 AN: 80946

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50532

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5724

European-Non Finnish (NFE) AF: 9.18e-7 AC: 1 AN: 1089478

Other (OTH) AF: 0.00 AC: 0 AN: 58784

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	-	BAP1-related tumor predisposition syndrome (1)
-	-	1	Hereditary cancer-predisposing syndrome (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.76
BayesDel_addAF	Benign	-0.011	T
BayesDel_noAF	Benign	-0.25
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.050	T
Eigen	Uncertain	0.24
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.32	T
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	1.7	L
PhyloP100		7.9
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-1.7	N
REVEL	Benign	0.12
Sift	Benign	0.066	T
Sift4G	Benign	0.33	T
Polyphen		0.056	B
Vest4		0.29
MutPred		0.31		Gain of solvent accessibility (P = 0.0674)
MVP		0.72
MPC		2.6
ClinPred		0.85	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.11
gMVP		0.91
Mutation Taster		=58/42	polymorphism

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

Other links and lift over

dbSNP: rs1060503739; hg19: chr3-52440915;