rs747286107

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_002354.3(EPCAM):​c.517C>A​(p.Arg173Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R173H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

EPCAM
NM_002354.3 missense

Scores

8
8
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.00

Publications

1 publications found
Variant links:
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 Gene-Disease associations (from GenCC):
  • Lynch syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • Lynch syndrome 8
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • congenital diarrhea 5 with tufting enteropathy
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Orphanet, G2P, Ambry Genetics
  • hereditary breast carcinoma
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.977

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EPCAMNM_002354.3 linkc.517C>A p.Arg173Ser missense_variant Exon 5 of 9 ENST00000263735.9 NP_002345.2 P16422

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EPCAMENST00000263735.9 linkc.517C>A p.Arg173Ser missense_variant Exon 5 of 9 1 NM_002354.3 ENSP00000263735.4 P16422
EPCAMENST00000405271.5 linkc.601C>A p.Arg201Ser missense_variant Exon 6 of 10 5 ENSP00000385476.1 B5MCA4
EPCAMENST00000456133.5 linkn.601C>A non_coding_transcript_exon_variant Exon 6 of 11 5 ENSP00000410675.1 B5MCA4
EPCAMENST00000490733.1 linkn.366C>A non_coding_transcript_exon_variant Exon 3 of 6 3

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1458504
Hom.:
0
Cov.:
28
AF XY:
0.00
AC XY:
0
AN XY:
725840
African (AFR)
AF:
0.00
AC:
0
AN:
33418
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26112
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39660
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86190
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53358
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1109012
Other (OTH)
AF:
0.00
AC:
0
AN:
60268
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1
Apr 12, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.R173S variant (also known as c.517C>A), located in coding exon 5 of the EPCAM gene, results from a C to A substitution at nucleotide position 517. The arginine at codon 173 is replaced by serine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.95
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.29
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T;D
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.80
.;T
M_CAP
Uncertain
0.18
D
MetaRNN
Pathogenic
0.98
D;D
MetaSVM
Uncertain
0.33
D
MutationAssessor
Pathogenic
3.2
.;M
PhyloP100
4.0
PrimateAI
Benign
0.43
T
PROVEAN
Pathogenic
-5.0
D;D
REVEL
Pathogenic
0.69
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.026
D;D
Polyphen
1.0
D;D
Vest4
0.82
MutPred
0.81
Gain of ubiquitination at K196 (P = 0.038);.;
MVP
0.77
MPC
0.072
ClinPred
0.99
D
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.98
gMVP
0.72
Mutation Taster
=31/69
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: rs747286107; hg19: chr2-47604178; API