Abstract:
:Nuclear hormone receptors comprise a superfamily of ligand-modulated transcription factors that mediate the transcriptional activities of steroids, retinoids, and thyroid hormones. A growing number of related proteins have been identified that possess the structural features of hormone receptors, but that lack known ligands. Known as orphan receptors, these proteins represent targets for novel signaling molecules. We have isolated a mammalian orphan receptor that forms a heterodimeric complex with the retinoid X receptor. A screen of candidate ligands identified farnesol and related metabolites as effective activators of this complex. Farnesol metabolites are generated intracellularly and are required for the synthesis of cholesterol, bile acids, steroids, retinoids, and farnesylated proteins. Intermediary metabolites have been recognized as transcriptional regulators in bacteria and yeast. Our results now suggest that metabolite-controlled intracellular signaling systems are utilized by higher organisms.
journal_name
Celljournal_title
Cellauthors
Forman BM,Goode E,Chen J,Oro AE,Bradley DJ,Perlmann T,Noonan DJ,Burka LT,McMorris T,Lamph WW,Evans RM,Weinberger Cdoi
10.1016/0092-8674(95)90530-8subject
Has Abstractpub_date
1995-06-02 00:00:00pages
687-93issue
5eissn
0092-8674issn
1097-4172pii
0092-8674(95)90530-8journal_volume
81pub_type
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