NM_004656.4:c.797C>T

Variant names:

• chr3-52405899-G-A
• rs769338697
• NM_004656.4:c.797C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP6

The NM_004656.4(BAP1):​c.797C>T​(p.Thr266Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,764 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T266T) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: BAP1 NM_004656.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3 B:1
• Conservation: PhyloP100: 7.13
• 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 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 3-52405899-G-A is Benign according to our data. Variant chr3-52405899-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 489644.

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.797C>T	p.Thr266Ile	missense	Exon 10 of 17	NP_004647.1	Q92560
	BAP1	NM_001410772.1		c.743C>T	p.Thr248Ile	missense	Exon 10 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.797C>T	p.Thr266Ile	missense	Exon 10 of 17	ENSP00000417132.1	Q92560
	BAP1	ENST00000296288.9	TSL:5	c.743C>T	p.Thr248Ile	missense	Exon 10 of 17	ENSP00000296288.5	F8W6N3
	BAP1	ENST00000471532.5	TSL:5	n.964C>T		non_coding_transcript_exon	Exon 5 of 5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.0000159 AC: 4 AN: 251406 AF XY: 0.0000221

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000217

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461764 Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3 AN XY: 727184

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.000101 AC: 4 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53370

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5712

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112006

Other (OTH) AF: 0.00 AC: 0 AN: 60390

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000189

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	1	Hereditary cancer-predisposing syndrome (2)
-	1	-	BAP1-related tumor predisposition syndrome (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Benign	-0.094	T
BayesDel_noAF	Uncertain	-0.080
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.063	T
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.64
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.75	T
M_CAP	Benign	0.024	T
MetaRNN	Uncertain	0.54	D
MetaSVM	Benign	-0.51	T
MutationAssessor	Benign	1.2	L
PhyloP100		7.1
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-1.9	N
REVEL	Benign	0.21
Sift	Benign	0.059	T
Sift4G	Uncertain	0.027	D
Polyphen		1.0	D
Vest4		0.63
MutPred		0.31		Gain of helix (P = 0.0496)
MVP		0.83
MPC		0.44
ClinPred		0.39	T
GERP RS		5.3
Varity_R		0.25
gMVP		0.72
Mutation Taster		=73/27	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs769338697; hg19: chr3-52439915;