title: Structure-reactivity relations of imidazole in polypeptides. I. Accelerated carboxymethylation reactions in poly-L-Histidine.
mesh_terms: D000081:Acetamides; D000085:Acetates; D000478:Alkylation; D000596:Amino Acids / Q000032:analysis; D001665:Binding Sites; D001966:Bromine; D002247:Carbon Isotopes; D055598:Chemical Phenomena; D011232:Chemical Precipitation; D002621:Chemistry; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D005561:Formates; D005998:Glycine / Q000032:analysis; D006016:Glycolates / Q000032:analysis; D006639:Histidine / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007093:Imidazoles; D007461:Iodoacetates; D007700:Kinetics; D010179:Pancreas / Q000201:enzymology; D010455:Peptides / Q000032:analysis; D011108:Polymers / Q000032:analysis; D012260:Ribonucleases / Q000032:analysis
chemical_list: D000081:Acetamides; D000085:Acetates; D000596:Amino Acids; D002247:Carbon Isotopes; D005561:Formates; D006016:Glycolates; D007093:Imidazoles; D007461:Iodoacetates; D010455:Peptides; D011108:Polymers; D006639:Histidine; D012260:Ribonucleases; D001966:Bromine; D005998:Glycine