PMID-sentid Pub_year Sent_text compound_name comp_offset prot_official_name organism prot_offset 2487323-2 1989 The apparent first order rate constant for inactivation is proportional to the concentration of iodoacetamide and a second order rate constant of 37 M-1 min-1 is obtained at pH 6.8 and 25 degrees C. Cyanogen bromide fragmentation of iodo(1-14C)acetamide - modified inactivated Dopa decarboxylase followed by trypsin digestion yields a single radioactive peptide. iodo(1-14c)acetamide 233-253 dopa decarboxylase Sus scrofa 277-295