Version History for M0169
Version 2.0 => Created
Version 2.1 => 1tk3 has been replaced by 1pfq as the later one is of higher resolution. First step has been split into two. an activation step and then the nucleophilic attack of the Ser, as for other Ser-His-Asp triads in MACiE. Asp now remains negatively charged throughout the reaction, with His becoming protonated.