UniProt data
UniProt name: EPCAM_HUMAN (P16422)
Gene name: EPCAM; Synonyms=GA733-2, M1S2, M4S1, MIC18, TACSTD1, TROP1
Organism: Homo sapiens (Human).
Function: May act as a physical homophilic interaction molecule between intestinal epithelial cells (IECs) and intraepithelial lymphocytes (IELs) at the mucosal epithelium for providing immunological barrier as a first line of defense against mucosal infection. Plays a role in embryonic stem cells proliferation and differentiation. Up-regulates the expression of FABP5, MYC and cyclins A and E. {ECO:0000269|PubMed:15195135, ECO:0000269|PubMed:15922867, ECO:0000269|PubMed:19785009, ECO:0000269|PubMed:20064925}.
Subcellular location: Lateral cell membrane {ECO:0000269|PubMed:15195135, ECO:0000269|PubMed:16054130, ECO:0000269|PubMed:19785009}; Single-pass type I membrane protein {ECO:0000269|PubMed:16054130}. Cell junction, tight junction {ECO:0000269|PubMed:16054130}. Note=Colocalizes with CLDN7 at the lateral cell membrane and tight junction. {ECO:0000269|PubMed:16054130}.
Transmembrane domains:
- 266-288, 23 AA, Helical. {ECO:0000255}.
Sequence: 314 AA
CATM prediction
The sequence of EPCAM_HUMAN returned 1 potential models
The positions at the dimer's interface are highlighted in yellow. The position at the crossing point is highlighted in orange.
| # | Sequence and interface | d | θ | Z' | ω' | Score |
|---|---|---|---|---|---|---|
| 270 280 29 + | + | + | |
(Å) | (°) | (Å) | (°) | ||
| Model 1 | GLKAGVIAVIVVVVIAVVAGIVVLVISRK | 6.7 | -53.0° | 5.2 | 58.0 | -2.5 |
Click on the model number to visualize its details below.

