3B). R526 within the loop in between αJ and αI anchors the C-terminal portion of the activation loop by forming a salt bridge with E458 at the base of αEF. Q459 stabilizes the HRD motif by a hydrogen bond to the main https://asiyaogkc757405.wikicorrespondence.com/3893409/a_simple_key_for_pkrrating_unveiled