PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2314485-4 1990 The PAF- and acetylcholine (ACh)-induced relaxations of mesenteric artery were dependent on the presence of endothelium and were inhibited by either hydroquinone and methylene blue, which inhibit the action of endothelium-derived relaxing factor (EDRF), or L-canavanine, which inhibits the formation of nitric oxide from L-arginine. Canavanine 257-269 PCNA clamp associated factor Rattus norvegicus 4-7