PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9442017-5 1998 Importantly, PtdIns(3,4,5)P3, but not PtdIns(4,5)P2, markedly enhances the ARF exchange activity of GRP1 in a reaction mixture containing dimyristoylphosphatidylcholine micelles, 3-[(3-cholamidopropyl)dimethylammonio]-1-propanesulfonic acid, and a low concentration of sodium cholate. Sodium Cholate 269-283 Rud3p Saccharomyces cerevisiae S288C 100-104