title: Photooxidation of ribonuclease U 1 .
mesh_terms: D000596:Amino Acids / Q000032:analysis; D001230:Aspergillus; D002247:Carbon Isotopes; D055598:Chemical Phenomena; D002621:Chemistry; D002845:Chromatography; D006150:Guanine Nucleotides / Q000494:pharmacology; D006639:Histidine / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007461:Iodoacetates / Q000494:pharmacology; D010084:Oxidation-Reduction; D010777:Photochemistry; D011487:Protein Conformation; D012260:Ribonucleases; D013053:Spectrophotometry
chemical_list: D000596:Amino Acids; D002247:Carbon Isotopes; D006150:Guanine Nucleotides; D007461:Iodoacetates; D006639:Histidine; D012260:Ribonucleases