Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity
Schiff-base intermediate with D-ribose 5-phosphate
Schiff-base intermediate with acetaldehyde
Archaetidylserine decarboxylase alpha chain
Archaetidylserine decarboxylase beta chain
Schiff-base intermediate with substrate; via pyruvic acid
O-(5'-phospho-DNA)-tyrosine intermediate
Removed in mature form; by autocatalysis
Involved in ionization of N3 of dUMP, leading to its activation