title: The identification of a glutamic acid residue as part of the active site of ribonuclease T-1.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D001230:Aspergillus / Q000201:enzymology*; D001665:Binding Sites; D001966:Bromine; D002247:Carbon Isotopes; D003864:Depression, Chemical; D005971:Glutamates / Q000032:analysis*; D006016:Glycolates / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007455:Iodine; D008956:Models, Chemical; D010455:Peptides / Q000032:analysis; D011485:Protein Binding; D012260:Ribonucleases / Q000032:analysis*
chemical_list: D000596:Amino Acids; D002247:Carbon Isotopes; D005971:Glutamates; D006016:Glycolates; D010455:Peptides; D007455:Iodine; D012260:Ribonucleases; D001966:Bromine