PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15163411-4 2004 We also show that GTP bound Ras2 associates with the GPI-GnT complex in vivo and inhibits its activity, indicating that yeast Ras uses the ER as a signaling platform from which to negatively regulate the GPI-GnT. Galantamine 57-60 Ras family GTPase RAS2 Saccharomyces cerevisiae S288C 28-32