chr2-47369506-A-G

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1PS1_ModeratePM2PP5_Moderate

The NM_002354.3(EPCAM):ā€‹c.1A>Gā€‹(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000103 in 1,549,840 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.000011 ( 0 hom. )

Consequence

EPCAM
NM_002354.3 start_lost

Scores

5
6
5

Clinical Significance

Likely pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 1.31
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PS1
Another start lost variant in NM_002354.3 (EPCAM) was described as [Pathogenic] in ClinVar as 1801668
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 2-47369506-A-G is Pathogenic according to our data. Variant chr2-47369506-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1801655.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EPCAMNM_002354.3 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/9 ENST00000263735.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EPCAMENST00000263735.9 linkuse as main transcriptc.1A>G p.Met1? start_lost 1/91 NM_002354.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152082
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000133
AC:
2
AN:
150630
Hom.:
0
AF XY:
0.0000120
AC XY:
1
AN XY:
83022
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000446
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000159
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000107
AC:
15
AN:
1397758
Hom.:
0
Cov.:
31
AF XY:
0.0000159
AC XY:
11
AN XY:
690930
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000114
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000552
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152082
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74298
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.0000174
AC:
2

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Gastric cancer Pathogenic:1
Pathogenic, no assertion criteria providedresearchLaboratory for Genotyping Development, RIKENJul 01, 2021- -
EPCAM-related disorder Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesAug 29, 2023The EPCAM c.1A>G variant is predicted to disrupt the translation initiation site (Start loss). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0045% of alleles in individuals of South Asian descent in gnomAD (http://gnomad.broadinstitute.org/variant/2-47596645-A-G). Other predicted loss-of-function variants have been reported nearby (see, for example, Cheema et al. 2020. PubMed ID: 33083013; Zhu et al. 2020. PubMed ID: 33240318). This variant is interpreted as likely pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.28
CADD
Benign
20
DANN
Benign
0.95
DEOGEN2
Benign
0.19
T;.
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Benign
0.53
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Pathogenic
1.0
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Uncertain
0.086
D
MutationTaster
Benign
1.0
D;D
PROVEAN
Benign
-1.4
N;N
REVEL
Uncertain
0.58
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.028
D;D
Polyphen
0.92
P;.
Vest4
0.86
MutPred
1.0
Loss of glycosylation at P3 (P = 0.0682);Loss of glycosylation at P3 (P = 0.0682);
MVP
0.72
ClinPred
0.99
D
GERP RS
4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.95
gMVP
0.53

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs752808238; hg19: chr2-47596645; API