Isoglutamyl lysine isopeptide (Glu-Lys) (interchain with K-? in acceptor proteins)
Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity
Fibronectin type-III domain-containing protein
Removed in mature form; by autocatalysis
Lytic transglycosylase domain-containing protein
O-(3'-phospho-DNA)-tyrosine intermediate
ABC transporter substrate-binding protein
Cellulosome anchoring protein cohesin region
Cytochrome bc1 complex Rieske iron-sulfur subunit
Nucleophile; cysteine thiosulfonate intermediate
Proton acceptor; for glutaminase activity
PQQ-binding-like beta-propeller repeat protein
Lipoprotein-anchoring transpeptidase ErfK/SrfK
Proton donor; for beta-elimination activity
Proton donor; for delta-elimination activity
Fe/B12 periplasmic-binding domain-containing protein
Beta-lactamase domain-containing protein
Gly-cisPro motif, important for rejection of L-amino acids
4Fe-4S dicluster domain-containing protein
LPXTG cell wall anchor domain-containing protein
O-(5'-phospho-DNA)-tyrosine intermediate
Phosphatidylserine decarboxylase alpha chain
Phosphatidylserine decarboxylase beta chain
Schiff-base intermediate with substrate; via pyruvic acid
Phosphocysteine intermediate; for EIIB activity
Nucleophile; for GTP cyclohydrolase activity
Proton acceptor; for GTP cyclohydrolase activity
Ferric oxidoreductase domain-containing protein
Arginine biosynthesis bifunctional protein ArgJ alpha chain
Arginine biosynthesis bifunctional protein ArgJ beta chain
Predicted lipoprotein with conserved Yx(FWY)xxD motif
2-(S-cysteinyl)pyruvic acid O-phosphothioketal