a single-pass type I membrane protein of the EPCAM family. 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. Expressed in almost all epithelial cell membranes but not on mesodermal or neural cell membranes. Found on the surface of adenocarcinomas including pancreatic carcinoma. May be a marker of cancer stem cells. Note: This description may include information from UniProtKB.
Protein type: Motility/polarity/chemotaxis; Membrane protein, integral
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.