PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23775072-2 2013 eIF2, a heterotrimeric G-protein, is activated by guanine nucleotide exchange to deliver the initiator methionyl-tRNA to the ribosome. methionyl-trna 103-117 eukaryotic translation initiation factor 2 subunit gamma Homo sapiens 0-4