Nature. 1995 Dec 14;378(6558):681-9.

Crystal structure of the RAR-gamma ligand-binding domain bound to all-trans retinoic acid.

Renaud JP, Rochel N, Ruff M, Vivat V, Chambon P, Gronemeyer H, Moras D.

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Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/ULP/Collège de France, Strasbourg, France.

Abstract

The 2.0-A crystal structure of the ligand-binding domain (LBD) of the human retinoic acid receptor (RAR)-gamma bound to all-trans retinoic acid reveals the ligand-binding interactions and suggests an electrostatic guidance mechanism. The overall fold is similar to that of the human RXR-alpha apo-LBD, except for the carboxy-terminal part which folds back towards the LBD core, contributing to the hydrophobic ligand pocket and 'sealing' its entry site. We propose a 'mouse trap' mechanism whereby a ligand-induced conformational transition repositions the amphipathic alpha-helix of the AF-2 activating domain and forms a transcriptionally active receptor.

PMID:: 7501014; [PubMed - indexed for MEDLINE]

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Structures reported by this article

Ligand-Binding Domain Of The Human Nuclear Receptor Rxr-Alpha

PDB: 1LBD

Source: Homo sapiens

Method: X-Ray Diffraction

Resolution: 2.7 Å

See all 9 structures...

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Crystal structure of the RAR-gamma ligand-binding domain bound to all-trans reti...
Crystal structure of the RAR-gamma ligand-binding domain bound to all-trans retinoic acid.
Nature. 1995 Dec 14 ;378(6558):681-9.

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