Proton acceptor; for FBP phosphatase activity
Proton donor/acceptor; for FBP aldolase activity
Schiff-base intermediate with DHAP; for FBP aldolase activity
Cysteine sulfenic acid (-SOH) intermediate
Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity
Interchain (with Cys-215); in linked form
Interchain (with Cys-49); in linked form
Removed in mature form; by autocatalysis