rs142887785

Positions:

• chr3-52405195-T-A
• chr3-52405195-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_004656.4(BAP1):​c.1031A>T​(p.Asn344Ile) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N344S) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: BAP1 NM_004656.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.01

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), BAP1. . Gene score misZ 2.6442 (greater than the threshold 3.09). Trascript score misZ 3.2667 (greater than threshold 3.09). GenCC has associacion of gene with BAP1-related tumor predisposition syndrome, Kury-Isidor syndrome, renal cell carcinoma.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BAP1	NM_004656.4	c.1031A>T	p.Asn344Ile	missense_variant	11/17	ENST00000460680.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BAP1	ENST00000460680.6	c.1031A>T	p.Asn344Ile	missense_variant	11/17	1	NM_004656.4	P1
BAP1	ENST00000296288.9	c.977A>T	p.Asn326Ile	missense_variant	11/17	5
BAP1	ENST00000490804.1	n.459A>T		non_coding_transcript_exon_variant	1/3	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.011	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.042	T;.
Eigen	Benign	-0.13
Eigen_PC	Benign	-0.058
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.86	D;D
M_CAP	Benign	0.066	D
MetaRNN	Uncertain	0.56	D;D
MetaSVM	Benign	-0.86	T
MutationAssessor	Benign	1.7	L;.
MutationTaster	Benign	0.90	D;D
PrimateAI	Uncertain	0.57	T
PROVEAN	Benign	-1.5	N;N
REVEL	Benign	0.13
Sift	Uncertain	0.0010	D;D
Sift4G	Uncertain	0.0090	D;D
Polyphen		0.24	B;.
Vest4		0.69
MutPred		0.31		Gain of sheet (P = 0.0036);.;
MVP		0.72
MPC		1.0
ClinPred		0.84	D
GERP RS		4.3
Varity_R		0.23
gMVP		0.38

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-52439211;