PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27481946-4 2016 We recently reported that the p21-activated kinases (PAKs), which are activated by GTP-bound Ras-related C3 botulinum toxin substrate 1 (Rac1), mediate the phosphorylation of PREX2 after insulin receptor activation. Guanosine Triphosphate 83-86 insulin receptor Homo sapiens 187-203