PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12446733-3 2003 Raf-1 is also thought to be recruited to the small G protein Rap1 upon GTP loading of Rap1. Guanosine Triphosphate 71-74 Raf-1 proto-oncogene, serine/threonine kinase Homo sapiens 0-5