GSK4112, a Small Molecule Chemical Probe for the Cell Biology of the Nuclear Heme Receptor Rev-erbα
The identification of nonporphyrin ligands for the orphan nuclear receptor Rev-erbα will enable studies of its role as a heme sensor and regulator of metabolic and circadian signaling. We describe the development of a biochemical assay measuring the interaction between Rev-erbα and a peptide from th...
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Veröffentlicht in: | ACS chemical biology 2010-10, Vol.5 (10), p.925-932 |
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Hauptverfasser: | , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The identification of nonporphyrin ligands for the orphan nuclear receptor Rev-erbα will enable studies of its role as a heme sensor and regulator of metabolic and circadian signaling. We describe the development of a biochemical assay measuring the interaction between Rev-erbα and a peptide from the nuclear receptor corepressor-1 (NCoR). The assay was utilized to identify a small molecule ligand for Rev-erbα, GSK4112 (1), that was competitive with heme. In cells, 1 profiled as a Rev-erbα agonist in cells to inhibit expression of the circadian target gene bmal1. In addition, 1 repressed the expression of gluconeogenic genes in liver cells and reduced glucose output in primary hepatocytes. Therefore, 1 is useful as a chemical tool to probe the function of Rev-erbα in transcriptional repression, regulation of circadian biology, and metabolic pathways. Additionally, 1 may serve as a starting point for design of Rev-erbα chemical probes with in vivo pharmacological activity. |
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ISSN: | 1554-8929 1554-8937 |
DOI: | 10.1021/cb100141y |