Journal
TRENDS IN ENDOCRINOLOGY AND METABOLISM
Volume 12, Issue 3, Pages 127-134Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S1043-2760(00)00355-6
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The TRAP/SMCC/Mediator complex is a mammalian transcriptional regulatory complex that contains over 25 polypeptides and is, in part, phylogenetically conserved. It was originally isolated as a thyroid hormone receptor (TR)associated protein (TRAP) complex that mediates TR-activated transcription from DNA templates in conjunction with the general transcription machinery, and probably acts in vivo after the action of other receptor-interacting coactivators involved in chromatin remodeling. Subsequently, the TRAP complex was identified as a more broadly used coactivator complex for a wide variety of activators. The TRAP220 subunit mediates ligand-dependent interactions of the complex with TR and other nuclear receptors; and genetic ablation of murine TRAP220 has revealed that it is essential both for optimal TR function and for a variety of early developmental and adult homeostasis events in mice, but not for cell viability per se.
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