Integrin beta 7 associates with integrin alpha 4 (CD49d) to form the alpha 4 beta 7 integrin LPAM-1, expressed on intraepithelial lymphocytes. It also associates with alpha E (CD103) to form the alpha E beta 7 integrin HML-1, expressed on T cells adjacent to mucosal epithelium and intraepithelial lymphocytes. Ligands for LPAM-1 include VCAM-1 (CD106), MAdCAM-1 and fibronectin, while the ligand of HML-1 is E-cadherin (CD324). Integrin beta 7 plays an important role in the adhesion of leukocytes to endothelial cells promoting the transmigration of leukocytes to extravascular spaces during the inflammatory response.
CD49 antigen-like family member D; CD49d; Integrin alpha-4; Integrin alpha-4/beta-7; Integrin alpha-IV; integrin alpha4B; Integrin beta-7; Integrin beta-P; Itga4; ITGB7; LPAM subunit alpha; Lymphocyte Peyer patch adhesion molecules subunit alpha; M290 IEL antigen; Peyer patches-specific homing receptor LPAM-1; VLA-4 receptor, alpha 4 subunit; VLA-4 subunit alpha
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