title: [The active center of ribonuclease T1. Current chemical modification studies].
mesh_terms: D000595:Amino Acid Sequence; D055598:Chemical Phenomena; D002621:Chemistry; D004798:Enzymes / Q000378:metabolism; D005973:Glutamine / Q000378:metabolism; D006146:Guanidines / Q000378:metabolism; D007093:Imidazoles; D007211:Indoles / Q000378:metabolism; D007461:Iodoacetates / Q000378:metabolism; D010636:Phenols / Q000378:metabolism; D012260:Ribonucleases / Q000378:metabolism*; D013451:Sulfonic Acids / Q000378:metabolism
chemical_list: D004798:Enzymes; D006146:Guanidines; D007093:Imidazoles; D007211:Indoles; D007461:Iodoacetates; D010636:Phenols; D013451:Sulfonic Acids; D005973:Glutamine; D012260:Ribonucleases