rs189732445

Positions:

• chr2-47375266-G-A
• chr2-47375266-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1 PM2 BP4

The NM_002354.3(EPCAM):​c.458G>A​(p.Arg153Lys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: EPCAM NM_002354.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.01

Genes affected

EPCAM (HGNC:11529): (epithelial cell adhesion molecule) This gene encodes a carcinoma-associated antigen and is a member of a family that includes at least two type I membrane proteins. This antigen is expressed on most normal epithelial cells and gastrointestinal carcinomas and functions as a homotypic calcium-independent cell adhesion molecule. The antigen is being used as a target for immunotherapy treatment of human carcinomas. Mutations in this gene result in congenital tufting enteropathy. [provided by RefSeq, Dec 2008]

EPCAM (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM1: In a topological_domain Extracellular (size 241) in uniprot entity EPCAM_HUMAN there are 12 pathogenic changes around while only 2 benign (86%) in NM_002354.3
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.40779343).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EPCAM	NM_002354.3	c.458G>A	p.Arg153Lys	missense_variant	4/9	ENST00000263735.9	NP_002345.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EPCAM	ENST00000263735.9	c.458G>A	p.Arg153Lys	missense_variant	4/9	1	NM_002354.3	ENSP00000263735.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.030
CADD	Pathogenic	26
DANN	Uncertain	0.98
DEOGEN2	Benign	0.10	T;T
Eigen	Uncertain	0.42
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.71	.;T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.41	T;T
MetaSVM	Benign	-0.38	T
MutationAssessor	Pathogenic	2.9	.;M
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-1.1	N;N
REVEL	Benign	0.27
Sift	Benign	0.18	T;T
Sift4G	Benign	0.36	T;T
Polyphen		0.99	D;D
Vest4		0.50
MutPred		0.23		Gain of relative solvent accessibility (P = 0.0479);.;
MVP		0.74
MPC		0.036
ClinPred		0.98	D
GERP RS		4.3
Varity_R		0.21
gMVP		0.50

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: chr2-47602405;