dPKR kinase area phosphorylated on residue T446 equivalent to chain B with the PKR kinase – eIF2? crystal structure PDB ID 2A19. 17 info have been processed using iMosflm and scaled with Aimless during the CCP4i2 suite39,40. Phases have been solved by molecular substitute with PHASER41 utilizing the phosphorylated, AMPPNP-certain PKR kinase area