Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity
Phosphocysteine intermediate; for EIIB activity
Cytochrome bc1 complex cytochrome c subunit
Involved in ionization of N3 of dUMP, leading to its activation
Gly-cisPro motif, important for rejection of L-amino acids
Nucleophile; for GTP cyclohydrolase activity
Proton acceptor; for GTP cyclohydrolase activity
O-(5'-phospho-DNA)-tyrosine intermediate
Nucleophile; cysteine thiosulfonate intermediate
5-glutamyl coenzyme A thioester intermediate
Schiff-base intermediate with acetaldehyde
Arginine biosynthesis bifunctional protein ArgJ alpha chain
Arginine biosynthesis bifunctional protein ArgJ beta chain
O-(3'-phospho-DNA)-tyrosine intermediate
Cysteine sulfenic acid (-SOH) intermediate
Phosphoenolpyruvate-protein phosphotransferase
Proton donor; for beta-elimination activity
Proton donor; for delta-elimination activity