Fam20C structure model highlights residues critical for protein kinase activity.

Fam20C structure model highlights residues critical for protein kinase activity. (A) The closest structure template [PDB ID: 2akl] to Fam20C is depicted in cartoon. The HHPRED alignment extends over a significant portion of the atypical protein kinase fold (pink) and includes the ATP-binding P-loop (cyan) and the catalytic loop (red). The confidently mapped sequence surrounds the active site highlighted by an ATP analog in stick with two magnesium ions (green). Conserved functional residues are depicted in stick (black). (B) A Fam20C structure model was generated using the template depicted in (A) using SWISS-MODEL. The ATP analog from the template structure highlights the active site, with conserved Fam20C residues shown in stick. D478 (magenta) is predicted to coordinate manganese (green), analogous to magnesium bound in the template.