2-47373943-C-G

Variant names:

• chr2-47373943-C-G
• NM_002354.3:c.320C>G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1 PM2 PP3_Moderate

The NM_002354.3(EPCAM):​c.320C>G​(p.Ala107Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: EPCAM NM_002354.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.54

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM1: In a domain Thyroglobulin type-1 (size 72) in uniprot entity EPCAM_HUMAN there are 8 pathogenic changes around while only 1 benign (89%) in NM_002354.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.89

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPCAM	NM_002354.3	c.320C>G	p.Ala107Gly	missense_variant	Exon 3 of 9	ENST00000263735.9	NP_002345.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EPCAM	ENST00000263735.9	c.320C>G	p.Ala107Gly	missense_variant	Exon 3 of 9	1	NM_002354.3	ENSP00000263735.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461884 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727246

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.48
BayesDel_addAF	Uncertain	0.095	D
BayesDel_noAF	Benign	-0.10
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Benign	0.39	T;D;.
Eigen	Pathogenic	0.88
Eigen_PC	Pathogenic	0.87
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.93	.;D;D
M_CAP	Benign	0.044	D
MetaRNN	Pathogenic	0.89	D;D;D
MetaSVM	Uncertain	-0.11	T
MutationAssessor	Uncertain	2.8	.;M;.
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-3.3	D;D;D
REVEL	Uncertain	0.50
Sift	Uncertain	0.0060	D;D;D
Sift4G	Uncertain	0.010	D;D;D
Polyphen		1.0	D;D;.
Vest4		0.66
MutPred		0.80		Loss of stability (P = 0.0279);.;.;
MVP		0.81
MPC		0.090
ClinPred		1.0	D
GERP RS		5.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.76
gMVP		0.55

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-47601082;