Journal
MOLECULAR CELL
Volume 24, Issue 5, Pages 797-803Publisher
CELL PRESS
DOI: 10.1016/j.molcel.2006.10.012
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Funding
- NIDDK NIH HHS [DK62434] Funding Source: Medline
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In the absence of specific high-affinity agonists and antagonists, it has been difficult to define the target genes and biological responses attributable to many of the orphan nuclear receptors (ONRs). Indeed, it appears that many members of this receptor superfamily are not regulated by classical small molecules but rather their activity is controlled by interacting co-factors. Motivated by this finding, we have developed an approach to genetically isolate specific receptor-cofactor pairs in cells, allowing us to define the biological responses attributable to each complex. This is accomplished by using combinatorial peptide phage display to engineer the receptor interacting domain of each cofactor such that it interacts selectively with one nuclear receptor. in this study, we describe the customization of PGC-1 alpha and its use to study the biology of the estrogen-related receptor alpha (ERR alpha) in cultured liver cells.
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