PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6177320-8 1982 Inhibition of cyclic AMP of cyclic GMP phosphodiesterase activity by 1-methyl-3-isobutylxanthine, quinidine, or compound SQ 20,009 was not affected appreciably by calcium or EGTA. Quinidine 98-107 5'-nucleotidase, cytosolic II Homo sapiens 35-38