PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1492127-1 1992 In stoichiometric amounts, the spin label N-tempoyl-(p-chloromercuribenzamide) reacts rapidly with one cysteine residue in membrane-bound bovine rhodopsin. p-chloromercuribenzamide 53-77 rhodopsin Bos taurus 145-154