Figure 2.
Structurally defined conformational states of the c-Src and Abl kinase domains. The P-loop is colored in red, helix αC is colored in orange and the activation loop is colored in blue. State A, active c-Src kinase Thr338Ile (PDB-entry 3DQW, (16)). State B, inactive Src/Cdk-like conformation (PDB-entry 1QCF) (32). State C, inactive Abl/c-Kit-like conformation (PDB-entry 1OPJ) (33) with the DFG motif in the flipped conformation relative to state A and B.
