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3KYT

Crystal structure of orphan nuclear receptor RORgamma in complex with natural ligand

Summary for 3KYT
Entry DOI10.2210/pdb3kyt/pdb
DescriptorNuclear receptor ROR-gamma, Nuclear receptor coactivator 2, 20-HYDROXYCHOLESTEROL, ... (4 entities in total)
Functional Keywordsror, nuclear receptors, alternative splicing, dna-binding, metal-binding, nucleus, receptor, transcription, transcription regulation, zinc, zinc-finger, acetylation, activator, phosphoprotein, polymorphism, lipid binding protein
Biological sourceHomo sapiens (human)
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Cellular locationNucleus (Probable): P51449
Nucleus: Q15596
Total number of polymer chains2
Total formula weight30203.26
Authors
Martynowski, D.,Li, Y. (deposition date: 2009-12-07, release date: 2010-03-16, Last modification date: 2024-02-21)
Primary citationJin, L.,Martynowski, D.,Zheng, S.,Wada, T.,Xie, W.,Li, Y.
Structural basis for hydroxycholesterols as natural ligands of orphan nuclear receptor RORgamma.
Mol.Endocrinol., 24:923-929, 2010
Cited by
PubMed Abstract: The retinoic acid-related orphan receptor gamma (RORgamma) has important roles in development and metabolic homeostasis. Although the biological functions of RORgamma have been studied extensively, no ligands for RORgamma have been identified, and no structure of RORgamma has been reported. In this study, we showed that hydroxycholesterols promote the recruitment of coactivators by RORgamma using biochemical assays. We also report the crystal structures of the RORgamma ligand-binding domain bound with hydroxycholesterols. The structures reveal the binding modes of various hydroxycholesterols in the RORgamma pocket, with the receptors all adopting the canonical active conformation. Mutations that disrupt the binding of hydroxycholesterols abolish the constitutive activity of RORgamma. Our observations suggest an important role for the endogenous hydroxycholesterols in modulating RORgamma-dependent biological processes.
PubMed: 20203100
DOI: 10.1210/me.2009-0507
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.35 Å)
Structure validation

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