Cysteine sulfenic acid (-SOH) intermediate
Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity
Interchain (with Cys-222); in linked form
Interchain (with Cys-53); in linked form
Important for interaction with partner proteins
Curli production assembly/transport component CsgE
Schiff-base intermediate with substrate; via pyruvic acid
2-(S-cysteinyl)pyruvic acid O-phosphothioketal
Gly-cisPro motif, important for rejection of L-amino acids
Outer membrane protein assembly factor BamE
Proton acceptor; for glutaminase activity
Arginine biosynthesis bifunctional protein ArgJ alpha chain
Arginine biosynthesis bifunctional protein ArgJ beta chain
Probable endolytic peptidoglycan transglycosylase RlpA
Nucleophile; for GTP cyclohydrolase activity
Proton acceptor; for GTP cyclohydrolase activity
O-(3'-phospho-DNA)-tyrosine intermediate
Proton acceptor; for FBP phosphatase activity
Proton donor/acceptor; for FBP aldolase activity
Schiff-base intermediate with DHAP; for FBP aldolase activity
Tol-Pal system beta propeller repeat protein TolB