PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2181052-10 1990 Imipramine stimulation is greatly decreased in cat-1 and cat-4 mutants, which have low levels of serotonin. Imipramine 0-10 GTP cyclohydrolase 1 Caenorhabditis elegans 57-62