Involved in ionization of N3 of dUMP, leading to its activation
Cytochrome bc1 complex cytochrome c subunit
Proton acceptor; for glutaminase activity
O-(5'-phospho-DNA)-tyrosine intermediate
Arginine biosynthesis bifunctional protein ArgJ alpha chain
Arginine biosynthesis bifunctional protein ArgJ beta chain
Nucleophile; cysteine thiosulfonate intermediate
Catalytic LigB subunit of aromatic ring-opening dioxygenase
Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity
Proton donor; for beta-elimination activity
Proton donor; for delta-elimination activity
Nucleophile; for GTP cyclohydrolase activity
Proton acceptor; for GTP cyclohydrolase activity
Cysteine sulfenic acid (-SOH) intermediate
Removed in mature form; by autocatalysis
Isoglutamyl lysine isopeptide (Gln-Lys) (interchain with K-? in acceptor proteins)
ABC_transp_aux domain-containing protein
Phosphatidylserine decarboxylase alpha chain
Phosphatidylserine decarboxylase beta chain
Phosphatidylserine decarboxylase proenzyme
Schiff-base intermediate with substrate; via pyruvic acid