The ecdysone receptor puzzle
1999
Lezzi, M. | Bergman, T. | Mouillet, J.F. | Henrich, V.C.
The present article reviews some recent findings on the functional ecdysone receptor which is a heterodimer of two proteins: ecdysone receptor (EcR) and Ultraspiracle (USP). Emphasis is given to some unique aspects of this receptor, in particular to its dimerization, binding to DNA, and transactivation capabilities. The effects of ligands (ecdysone, juvenile hormone) on these functions are disccused. In addition, perspectives on future work on this receptor are outlined, which are shaped by recent progress in the nuclear receptor field in general. This preview part of the present article concerns mainly the 3-D structure of receptor domains, the formation of large supramolecular receptor complexes, their influence on chromatin remodelling, receptor phosphorylation, as well as inter- and intramolecular cross-talks of receptor domains.
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