The Crk-I and Crk-II forms differ in their biological activities. Crk-II has less transforming activity than Crk-I. Crk- II mediates attachment-induced MAPK8 activation, membrane ruffling and cell motility in a Rac-dependent manner. Involved in phagocytosis of apoptotic cells and cell motility via its interaction with DOCK1 and DOCK4. May regulate the EFNA5-EPHA3 signaling
Tissue Specificity
A synthetic peptide corresponding to residues in the second SH3 domain and near C-terminus of human Crk (p38) protein was used as immunogen.
Cellular Localization
Cytoplasm (By similarity). Cell membrane (By similarity). Note=Translocated to the plasma membrane upon cell adhesion (By similarity)