PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8089153-9 1994 In two transformed cell lines, treatment with phorbol ester inhibits proliferation and results in a dramatic down-regulation in the levels of GMP synthetase mRNA and protein. Phorbol Esters 46-59 guanine monophosphate synthase Homo sapiens 142-156