Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity
Prokaryotic cytochrome C oxidase subunit IV family protein
Schiff-base intermediate with substrate; via topaquinone
Schiff-base intermediate with substrate; via pyruvic acid
Proton donor; for beta-elimination activity
Proton donor; for delta-elimination activity
Alanine and proline-rich secreted protein Apa
Cytochrome bc1 complex Rieske iron-sulfur subunit
Resolvase/invertase-type recombinase catalytic
Isoglutamyl lysine isopeptide (Gln-Lys) (interchain with K-? in acceptor proteins)
Helix-turn-helix domain-containing protein
Schiff-base intermediate with acetaldehyde
Cysteine sulfenic acid (-SOH) intermediate
Autotransporter domain-containing protein
O-(5'-phospho-DNA)-tyrosine intermediate
Isoglutamyl lysine isopeptide (Lys-Gln) (interchain with Q-Cter in protein Pup)
Conserved proline, glycine, valine-rich secreted protein
Tryptophyl-tyrosyl-methioninium (Tyr-Met) (with Trp-113)
Nucleophile; for GTP cyclohydrolase activity
Proton acceptor; for GTP cyclohydrolase activity
Proton acceptor; for glutaminase activity
Tryptophyl-tyrosyl-methioninium (Tyr-Met) (with Trp-123)
Involved in ionization of N3 of dUMP, leading to its activation
Gly-cisPro motif, important for rejection of L-amino acids
Removed in mature form; by autocatalysis
ABC transporter substrate-binding protein
Nucleophile; cysteine thiosulfonate intermediate