A. Unanchored dendrogram of the human kinome illustrating the diversity of the EPK superfamily and subfamilies. Individual subfamily members with functional mutations shown in Fig. 4c and included in Supplementary Table 7 are listed. TK: tyrosine kinase; TKL: TK-like; STE: STE7/11/20; CK1: Casein Kinase 1; AGC: protein kinase A/G/C; CAMK: Calmodulin kinase; CMGC: cyclin dependent kinase (CDK)/mitogen activated protein kinase (MAPK)/glycogen synthase kinase (GSK)/CDK-like kinase (CLK).
B. Allosteric regulatory sites from diverse kinases mapped to a single representative structure - yeast CDK Pho85 (PDB: 2PK9, shown as space-filled surface). Regulatory surfaces were identified by structural alignment of the kinase of interest to Pho85; all Pho85 positions within 4Å of the interaction surface are colored. Color coding is the same as in (A). Bright yellow spheres indicate known phosphoregulatory sites.