Functions as cell surface receptor for TIMP1 and plays a role in the activation of cellular signaling cascades. Plays a role in the activation of ITGB1 and integrin signaling, leading to the activation of AKT, FAK,PTK2 and MAP kinases. Promotes cell survival, reorganization of the actin cytoskeleton, cell adhesion, spreading and migration, via its role in the activation of AKT and FAK,PTK2. Plays a role in VEGFA signaling via its role in regulating the internalization of KDR,VEGFR2. Plays a role in intracellular vesicular transport processes, and is required for normal trafficking of the PMEL luminal domain that is essential for the development and maturation of melanocytes. Plays a role in the adhesion of leukocytes onto endothelial cells via its role in the regulation of SELP trafficking. May play a role in mast cell degranulation in response to Ms4a2,FceRI stimulation, but not in mast cell degranulation in response to other stimuli.
The tetraspanin CD63 is required for efficient IgE-mediated mast cell degranulation and anaphylaxis.Kraft S., Jouvin M.H., Kulkarni N., Kissing S., Morgan E.S., Dvorak A.M., Schroder B., Saftig P., Kinet J.P.J. Immunol. 191:2871-2878(2013)
Research Topic:Others