Involved in ionization of N3 of dUMP, leading to its activation
O-(3'-phospho-DNA)-tyrosine intermediate
Schiff-base intermediate with D-ribose 5-phosphate
Phosphocysteine intermediate; for EIIB activity
O-(5'-phospho-DNA)-tyrosine intermediate
Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity
Gly-cisPro motif, important for rejection of L-amino acids
Isoglutamyl lysine isopeptide (Gln-Lys) (interchain with K-? in acceptor proteins)
5-glutamyl coenzyme A thioester intermediate
Nucleophile; for GTP cyclohydrolase activity
Proton acceptor; for GTP cyclohydrolase activity
Cysteine sulfenic acid (-SOH) intermediate
Proton donor; for beta-elimination activity
Proton donor; for delta-elimination activity
Conserved repeat domain-containing protein
Arginine biosynthesis bifunctional protein ArgJ alpha chain
Arginine biosynthesis bifunctional protein ArgJ beta chain
Nucleophile; cysteine thiosulfonate intermediate
Resolvase/invertase-type recombinase catalytic