Crk Proteins and Enzymes

Crk belongs to a family of adaptor molecules, which link extracellular growth and differentiation stimuli with formation of signal transduction protein complexes. Crk is mainly composed of Src homology 2 (SH2) and Src homology 3 (SH3) domains, which serve as docking sites for signalling proteins, including various receptors, cytoplasmic kinases, and GTPase regulators. These signal transduction pathways lead to modulation of cell adhesion, cell migration and immune cell responses.