Genetic Information

Gene & Transcript Details

Gene
EPCAM
Transcript
NM_002354.3 MANE Select
Total Exons
Reference Sequence
NC_000002.11
Alternative Transcripts
IDStatusDetails
NM_002354.3 MANE Select 1547 nt | 196–1140
NM_002354.2 RefSeq Select 1731 nt | 359–1303
NM_002354.1 Alternative 1528 nt | 179–1123

Variant Details

HGVS Notation
NM_002354.3:c.294C>G
Protein Change
D98E
Location
Exon 3 (Exon 3 of )
3
5'Exon Structure3'
Functional Consequence
Loss of Function
Alternate Identifiers

Clinical & Population Data

Population Frequency

gnomAD
Global Frequency
0.000398 in 100,000
Extremely Rare
ACMG Criteria Applied PM2
This variant is absent or extremely rare in population databases (PM2 criteria applies).

ClinVar

Open
Classification
Uncertain Significance (VUS)
1 publications
Clinical Statement

"This variant has been reported in ClinVar as Uncertain significance (1 clinical laboratories)."

COSMIC Somatic Evidence

Open
COSMIC ID
COSM6158531
Recurrence
1 occurrences
PM1 Criteria
Not Applied
COSMIC Database Preview
COSMIC Preview
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Functional Impact & Domains

Functional Domain

Hotspot Status
Not a hotspot
Domain Summary
This variant is not located in a mutational hotspot or critical domain.
Related Variants in This Domain
No evidence of other pathogenic variants at this position in gene EPCAM.

Functional Studies & Therapeutic Relevance

Functional Summary

The EPCAM D98E variant has not been functionally characterized.

Database Previews
OncoKB
OncoKB Preview
JAX-CKB
JAX-CKB Preview

Click on previews to view full database entries. External databases may require institutional access.

Computational Analysis

Pathogenicity Predictions

SpliceAI
Predictor Consensus
Mixed/VUS
PP3 Applied
No
REVEL Score
0.0
Threshold: ≥0.75 = PP3 applied

SpliceAI Scores

Window: ±500bp
Effect Type Score Position
- Acceptor Loss (AL) 0.02 -109 bp
- Donor Loss (DL) 0.03 56 bp
+ Acceptor Gain (AG) 0.0 1 bp
+ Donor Gain (DG) 0.0 -343 bp
High impact (≥0.5) Medium impact (0.2-0.49) Low impact (<0.2)

VCEP Guidelines

Applied ACMG/AMP Criteria (VCEP Specific)

Filter Criteria:
PVS1

PVS1 (Not Applied)

According to standard ACMG guidelines, the rule for PVS1 is: "Null variant in a gene where loss of function (LoF) is a known mechanism of disease." The evidence for this variant shows: it is a missense change (p.D98E), not a null variant. Therefore, this criterion is not applied.

PS1

PS1 (Not Applied)

According to standard ACMG guidelines, the rule for PS1 is: "Same amino acid change as a known pathogenic variant regardless of nucleotide change." The evidence for this variant shows: no previously established pathogenic variant with the same amino acid change. Therefore, this criterion is not applied.

PS2

PS2 (Not Applied)

According to standard ACMG guidelines, the rule for PS2 is: "De novo (both maternity and paternity confirmed) in a patient with the disease and no family history." The evidence for this variant shows: no data on de novo status. Therefore, this criterion is not applied.

PS3

PS3 (Not Applied)

According to standard ACMG guidelines, the rule for PS3 is: "Well-established functional studies supportive of a damaging effect on the gene or gene product." The evidence for this variant shows: no functional characterization available. Therefore, this criterion is not applied.

PS4

PS4 (Not Applied)

According to standard ACMG guidelines, the rule for PS4 is: "Prevalence in affected individuals significantly increased compared with controls." The evidence for this variant shows: no case-control data or increased prevalence in affected individuals. Therefore, this criterion is not applied.

PM1

PM1 (Not Applied)

According to standard ACMG guidelines, the rule for PM1 is: "Located in a mutational hot spot or well-established functional domain without benign variation." The evidence for this variant shows: no known mutational hot spot or critical domain at residue 98. Therefore, this criterion is not applied.

PM2

PM2 (Moderate)

According to standard ACMG guidelines, the rule for PM2 is: "Absent from controls (or at extremely low frequency if recessive)." The evidence for this variant shows: extremely rare in population databases (gnomAD MAF=0.000398%). Therefore, this criterion is applied at Moderate strength because the variant is absent or extremely rare in controls.

PM3

PM3 (Not Applied)

According to standard ACMG guidelines, the rule for PM3 is: "Detected in trans with a pathogenic variant for recessive disorders." The evidence for this variant shows: no evidence of cis/trans phase with another variant. Therefore, this criterion is not applied.

PM4

PM4 (Not Applied)

According to standard ACMG guidelines, the rule for PM4 is: "Protein length changes due to in‐frame deletions/insertions or stop‐loss variants." The evidence for this variant shows: it is a missense change without protein length alteration. Therefore, this criterion is not applied.

PM5

PM5 (Not Applied)

According to standard ACMG guidelines, the rule for PM5 is: "Novel missense change at an amino acid residue where a different pathogenic missense change has been seen." The evidence for this variant shows: no known pathogenic missense at residue 98. Therefore, this criterion is not applied.

PM6

PM6 (Not Applied)

According to standard ACMG guidelines, the rule for PM6 is: "Assumed de novo, but without confirmation of paternity and maternity." The evidence for this variant shows: no de novo data. Therefore, this criterion is not applied.

PP1

PP1 (Not Applied)

According to standard ACMG guidelines, the rule for PP1 is: "Co‐segregation with disease in multiple affected family members." The evidence for this variant shows: no segregation data. Therefore, this criterion is not applied.

PP2

PP2 (Not Applied)

According to standard ACMG guidelines, the rule for PP2 is: "Missense variant in a gene with a low rate of benign missense variation and where missense variants are a common mechanism of disease." The evidence for this variant shows: EPCAM disease mechanism is LoF, not missense. Therefore, this criterion is not applied.

PP3

PP3 (Not Applied)

According to standard ACMG guidelines, the rule for PP3 is: "Multiple lines of computational evidence support a deleterious effect." The evidence for this variant shows: in silico tools predict a benign impact. Therefore, this criterion is not applied.

PP4

PP4 (Not Applied)

According to standard ACMG guidelines, the rule for PP4 is: "Patient phenotype or family history highly specific for a disease with a single genetic etiology." The evidence for this variant shows: no phenotype or family history data provided. Therefore, this criterion is not applied.

PP5

PP5 (Not Applied)

According to standard ACMG guidelines, the rule for PP5 is: "Reputable source reports variant as pathogenic, but without accessible evidence." The evidence for this variant shows: no reputable pathogenic assertion. Therefore, this criterion is not applied.

BA1

BA1 (Not Applied)

According to standard ACMG guidelines, the rule for BA1 is: "Allele frequency is too high for the disorder (>5%)." The evidence for this variant shows: MAF is 0.000398%, far below threshold. Therefore, this criterion is not applied.

BS1

BS1 (Not Applied)

According to standard ACMG guidelines, the rule for BS1 is: "Allele frequency is greater than expected for the disorder." The evidence for this variant shows: allele frequency is extremely low. Therefore, this criterion is not applied.

BS2

BS2 (Not Applied)

According to standard ACMG guidelines, the rule for BS2 is: "Observed in a healthy adult individual for a fully penetrant dominant disorder." The evidence for this variant shows: no healthy adult observations reported. Therefore, this criterion is not applied.

BS3

BS3 (Not Applied)

According to standard ACMG guidelines, the rule for BS3 is: "Well-established functional studies show no damaging effect on protein function or splicing." The evidence for this variant shows: no functional studies available. Therefore, this criterion is not applied.

BS4

BS4 (Not Applied)

According to standard ACMG guidelines, the rule for BS4 is: "Lack of segregation in affected family members." The evidence for this variant shows: no segregation analysis. Therefore, this criterion is not applied.

BP1

BP1 (Supporting)

According to standard ACMG guidelines, the rule for BP1 is: "Missense variant in a gene where only loss of function causes disease." The evidence for this variant shows: EPCAM disease mechanism is LoF and this is a missense change. Therefore, this criterion is applied at Supporting strength because missense is not a known disease mechanism for EPCAM.

BP2

BP2 (Not Applied)

According to standard ACMG guidelines, the rule for BP2 is: "Observed in trans with a pathogenic variant for a dominant disorder or in cis with a pathogenic variant." The evidence for this variant shows: no phase data with other variants. Therefore, this criterion is not applied.

BP3

BP3 (Not Applied)

According to standard ACMG guidelines, the rule for BP3 is: "In-frame deletions/insertions in a repetitive region without known function." The evidence for this variant shows: it is a missense variant, not an in-frame indel. Therefore, this criterion is not applied.

BP4

BP4 (Supporting)

According to standard ACMG guidelines, the rule for BP4 is: "Multiple lines of computational evidence suggest no impact on gene or gene product." The evidence for this variant shows: in silico tools (CADD, PolyPhen-2, MetaSVM, MetaLR, PrimateAI) predict benign and SpliceAI shows no splicing impact. Therefore, this criterion is applied at Supporting strength because computational evidence indicates no functional impact.

BP5

BP5 (Not Applied)

According to standard ACMG guidelines, the rule for BP5 is: "Variant found in a case with an alternate molecular basis for disease." The evidence for this variant shows: no alternate molecular diagnosis in reported cases. Therefore, this criterion is not applied.

BP6

BP6 (Not Applied)

According to standard ACMG guidelines, the rule for BP6 is: "Reputable source reports variant as benign, but without accessible evidence." The evidence for this variant shows: no reputable benign assertion. Therefore, this criterion is not applied.

BP7

BP7 (Not Applied)

According to standard ACMG guidelines, the rule for BP7 is: "Synonymous variant with no predicted impact on splicing." The evidence for this variant shows: it is a missense variant, not synonymous. Therefore, this criterion is not applied.