PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8569737-6 1995 And finally, the data is presented that acetylcholine-induced elevations of intracellular levels of cyclic GMP can be attenuated by muscarinic antagonist, atropine and superoxide anion scavenger, nitroblue tetrazolium. Superoxides 168-184 5'-nucleotidase, cytosolic II Homo sapiens 107-110