A non-receptor protein-tyrosine kinase that is expressed primarily in the BRAIN; OSTEOBLASTS; and LYMPHOID CELLS. In the CENTRAL NERVOUS SYSTEM focal adhesion kinase 2 modulates ION CHANNEL function and MITOGEN-ACTIVATED PROTEIN KINASES activity.

Synonyms: RAFTK Protein, EC 2.7.10.2, FAK Autokinase, Focal Adhesion Kinase Autokinase, Proline Rich Tyrosine Kinase 2, Focal Adhesion Kinase 2, Protein Tyrosine Kinase PYK2, Calcium-Dependent Protein Tyrosine Kinase, PYK2 Protein Tyrosine Kinase, Cell Adhesion Kinase Beta, CADTK Protein, Related Adhesion Focal Tyrosine Kinase, Proline-Rich Tyrosine Kinase 2, Calcium Dependent Protein Tyrosine Kinase