Cadherins are calcium-dependent cell adhesion proteins (PubMed:11976333). They preferentially interact with themselves in a homophilic manner in connecting cells; cadherins may thus contribute to the sorting of heterogeneous cell types. CDH1 is involved in mechanisms regulating cell-cell adhesions, mobility and proliferation of epithelial cells (PubMed:11976333). Has a potent invasive suppressor role. It is a ligand for integrin alpha-E/beta-7. E-Cad/CTF2 promotes non-amyloidogenic degradation of Abeta precursors. Has a strong inhibitory effect on APP C99 and C83 production. (Microbial infection) Serves as a receptor for Listeria monocytogenes; internalin A (InlA) binds to this protein and promotes uptake of the bacteria. Homodimer; disulfide-linked (PubMed:11856755). Component of an E-cadherin/ catenin adhesion complex composed of at least E-cadherin/CDH1, beta-catenin/CTNNB1 or gamma-catenin/JUP, and potentially alpha-catenin/CTNNA1; the complex is located to adherens junctions (PubMed:16126725, PubMed:7982500). Interacts with the TRPV4 and CTNNB1 complex (By similarity). Interacts with CTNND1 (PubMed:15240885). The stable association of CTNNA1 is controversial as CTNNA1 was shown not to bind to F-actin when assembled in the complex (By similarity). Alternatively, the CTNNA1-containing complex may be linked to F-actin by other proteins such as LIMA1 (By similarity). Interaction with PSEN1, cleaves CDH1 resulting in the disassociation of cadherin-based adherens junctions (CAJs) (PubMed:11226248, PubMed:16126725). Interacts with AJAP1 and DLGAP5 (PubMed:14699157, PubMed:14595118). Interacts with TBC1D2 (PubMed:20116244). Interacts with LIMA1 (PubMed:18093941). Interacts with CAV1. Interacts with PIP5K1C (PubMed:17261850). Interacts with RAB8B (By similarity). Interacts with RAPGEF2 (By similarity). Interacts with DDR1; this stabilizes CDH1 at the cell surface and inhibits its internalization (PubMed:20432435). Interacts with KLRG1 (PubMed:19604491). Forms a ternary complex composed of ADAM10, CADH1 and EPHA4; within the complex, CADH1 is cleaved by ADAM10 which disrupts adherens junctions (By similarity). Interacts with SPEF1 (PubMed:31473225). (Microbial infection) Interacts with L.monocytogenes InlA (PubMed:12526809, PubMed:17540170, PubMed:17715295). The formation of the complex between InlA and cadherin-1 is calcium-dependent (PubMed:12526809). Colocalizes with DLGAP5 at sites of cell-cell contact in intestinal epithelial cells. Anchored to actin microfilaments through association with alpha-, beta- and gamma-catenin. Sequential proteolysis induced by apoptosis or calcium influx, results in translocation from sites of cell-cell contact to the cytoplasm. Colocalizes with RAB11A endosomes during its transport from the Golgi apparatus to the plasma membrane. Non-neural epithelial tissues. Expression is repressed by MACROD1. Three calcium ions are usually bound at the interface of each cadherin domain and rigidify the connections, imparting a strong curvature to the full-length ectodomain. During apoptosis or with calcium influx, cleaved by a membrane-bound metalloproteinase (ADAM10), PS1/gamma-secretase and caspase-3 (PubMed:11076937, PubMed:11953314, PubMed:10597309). Processing by the metalloproteinase, induced by calcium influx, causes disruption of cell-cell adhesion and the subsequent release of beta-catenin into the cytoplasm (PubMed:10597309). The residual membrane-tethered cleavage product is rapidly degraded via an intracellular proteolytic pathway (PubMed:10597309). Cleavage by caspase-3 releases the cytoplasmic tail resulting in disintegration of the actin microfilament system (PubMed:11076937). The gamma-secretase-mediated cleavage promotes disassembly of adherens junctions (PubMed:11953314). During development of the cochlear organ of Corti, cleavage by ADAM10 at adherens junctions promotes pillar cell separation (By similarity). N-glycosylation at Asn-637 is essential for expression, folding and trafficking. Addition of bisecting N-acetylglucosamine by MGAT3 modulates its cell membrane location (PubMed:19403558). Ubiquitinated by a SCF complex containing SKP2, which requires prior phosphorylation by CK1/CSNK1A1. Ubiquitinated by CBLL1/HAKAI, requires prior phosphorylation at Tyr-754. O-glycosylated. O-manosylated by TMTC1, TMTC2, TMTC3 or TMTC4. Thr-285 and Thr-509 are O-mannosylated by TMTC2 or TMTC4 but not TMTC1 or TMTC3. Disease susceptibility is associated with variants affecting the gene represented in this entry. Heterozygous CDH1 germline mutations are responsible for familial cases of diffuse gastric cancer. Somatic mutations has also been found in patients with sporadic diffuse gastric cancer and lobular breast cancer. Disease susceptibility is associated with variants affecting the gene represented in this entry. Disease susceptibility is associated with variants affecting the gene represented in this entry. The gene represented in this entry may be involved in disease pathogenesis. The disease is caused by variants affecting the gene represented in this entry. E-cadherin entry