Cysteine sulfenic acid (-SOH) intermediate
O-(3'-phospho-DNA)-tyrosine intermediate
Important for interaction with partner proteins
Schiff-base intermediate with acetaldehyde
Phosphocysteine intermediate; for EIIB activity
serine-type D-Ala-D-Ala carboxypeptidase
2-(S-cysteinyl)pyruvic acid O-phosphothioketal
O-(5'-phospho-DNA)-tyrosine intermediate
Arginine biosynthesis bifunctional protein ArgJ alpha chain
Arginine biosynthesis bifunctional protein ArgJ beta chain
Nucleophile; methyl group acceptor from either O6- methylguanine or O4-methylthymine
Nucleophile; methyl group acceptor from methylphosphotriester
Proton acceptor; for phosphorylation activity. Proton donor; for dephosphorylation activity
Proton donor; for beta-elimination activity
Proton donor; for delta-elimination activity
Interaction with polymerase core subunit RpoC
Cysteine sulfenic acid (-SOH) intermediate; for peroxidase activity