A) Alignment from the 3 exclusive protomers present during the asymmetric unit with the AMPPNP intricate from the unphosphorylated PKR kinase domain Together with the AMPPNP advanced of the phosphorylated PKR kinase area (PDB 2A19, chain B). The color plan is indicated from the legend. B) Comparison on the Lively web sites. For clarity, only chain