PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1362034-3 1992 The results pose an interesting problem, the possible relation of Fos protein to the biosynthesis of serotonin, awaiting further investigation. Serotonin 101-110 Fos proto-oncogene, AP-1 transcription factor subunit Rattus norvegicus 66-69