The FERM_C domain is the third structural domain within the FERM domain. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM_C domain is also found in protein tyrosine phosphatases (PTPs), the tyrosine kinases FAKand JAK, in addition to other proteins involved in signaling. This domain is structuraly similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites.