Nitrogen and sulphur at the active centre of carboxypeptidase A.
D043422:Carboxypeptidases A; D010450:Endopeptidases; D006867:Hydrolases; D009584:Nitrogen; D010447:Peptide Hydrolases / Q000737:chemistry*; D013455:Sulfur
D013455:Sulfur; D006867:Hydrolases; D010450:Endopeptidases; D010447:Peptide Hydrolases; D043422:Carboxypeptidases A; D009584:Nitrogen
NITROGEN; PROTEASES/chemistry; SULFUR