ITGB7

This gene encodes a protein that is a member of the integrin superfamily. Members of this family are adhesion receptors that function in signaling from the extracellular matrix to the cell. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. The encoded protein forms dimers with an alpha4 chain or an alphaE chain and plays a role in leukocyte adhesion. Dimerization with alpha4 forms a homing receptor for migration of lymphocytes to the intestinal mucosa and Peyer's patches. Dimerization with alphaE permits binding to the ligand epithelial cadherin, a calcium-dependent adhesion molecule. Alternate splicing results in multiple transcript variants. Additional alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known.

integrin beta 7

Integrin Subunit Beta 7

Integrin alpha-4/beta-7 (Peyer patches-specific homing receptor LPAM-1) is an adhesion molecule that mediates lymphocyte migration and homing to gut-associated lymphoid tissue (GALT). Integrin alpha-4/beta-7 interacts with the cell surface adhesion molecules MADCAM1 which is normally expressed by the vascular endothelium of the gastrointestinal tract. Interacts also with VCAM1 and fibronectin, an extracellular matrix component. It recognizes one or more domains within the alternatively spliced CS-1 region of fibronectin. Interactions involves the tripeptide L-D-T in MADCAM1, and L-D-V in fibronectin. Binds to HIV-1 gp120, thereby allowing the virus to enter GALT, which is thought to be the major trigger of AIDS disease. Interaction would involve a tripeptide L-D-I in HIV-1 gp120. Integrin alpha-E/beta-7 (HML-1) is a receptor for E-cadherin.

Cell adhesionManual Assertion Based On ExperimentTAS:ProtInc
Cell adhesion mediated by integrinManual Assertion Based On ExperimentIBA:GO_Central
Cell migrationManual Assertion Based On ExperimentIBA:GO_Central
Cell-matrix adhesionManual Assertion Based On ExperimentIMP:UniProtKB
Cell-matrix adhesion involved in ameboidal cell migrationManual Assertion Based On ExperimentIMP:UniProtKB
Heterotypic cell-cell adhesionManual Assertion Based On ExperimentIMP:UniProtKB
Integrin-mediated signaling pathwayManual Assertion Based On ExperimentIMP:UniProtKB
Leukocyte tethering or rollingManual Assertion Based On ExperimentIMP:UniProtKB
Receptor clusteringManual Assertion Based On ExperimentIMP:UniProtKB
Substrate adhesion-dependent cell spreadingManual Assertion Based On ExperimentIMP:UniProtKB
T cell migrationIEA:Ensembl

Membrane

Extracellular: 20-723
Helical: 724-746
Cytoplasmic: 747-798