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==Crystal structure of orphan nuclear receptor RORgamma in complex with natural ligand==
==Crystal structure of orphan nuclear receptor RORgamma in complex with natural ligand==
<StructureSection load='3kyt' size='340' side='right' caption='[[3kyt]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
<StructureSection load='3kyt' size='340' side='right'caption='[[3kyt]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3kyt]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KYT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3KYT FirstGlance]. <br>
<table><tr><td colspan='2'>[[3kyt]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KYT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3KYT FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HC2:20-HYDROXYCHOLESTEROL'>HC2</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.35&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">RORC, NR1F3, RORG, RZRG ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HC2:20-HYDROXYCHOLESTEROL'>HC2</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3kyt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3kyt OCA], [http://pdbe.org/3kyt PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3kyt RCSB], [http://www.ebi.ac.uk/pdbsum/3kyt PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3kyt ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3kyt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3kyt OCA], [https://pdbe.org/3kyt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3kyt RCSB], [https://www.ebi.ac.uk/pdbsum/3kyt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3kyt ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
[[http://www.uniprot.org/uniprot/NCOA2_HUMAN NCOA2_HUMAN]] Note=Chromosomal aberrations involving NCOA2 may be a cause of acute myeloid leukemias. Inversion inv(8)(p11;q13) generates the KAT6A-NCOA2 oncogene, which consists of the N-terminal part of KAT6A and the C-terminal part of NCOA2/TIF2. KAT6A-NCOA2 binds to CREBBP and disrupts its function in transcription activation.
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/RORG_HUMAN RORG_HUMAN]] Possible nuclear receptor for hydroxycholesterols, the binding of which strongly promotes coactivators recruitment. Essential for thymopoiesis and the development of several secondary lymphoid tissues, including lymph nodes. Involved in lineage specification of uncommitted CD4(+) T-helper cells into Th17 cells. Regulate the expression of several components of the circadian clock. [[http://www.uniprot.org/uniprot/NCOA2_HUMAN NCOA2_HUMAN]] Transcriptional coactivator for steroid receptors and nuclear receptors. Coactivator of the steroid binding domain (AF-2) but not of the modulating N-terminal domain (AF-1). Required with NCOA1 to control energy balance between white and brown adipose tissues.<ref>PMID:9430642</ref> 
[https://www.uniprot.org/uniprot/RORG_HUMAN RORG_HUMAN] Possible nuclear receptor for hydroxycholesterols, the binding of which strongly promotes coactivators recruitment. Essential for thymopoiesis and the development of several secondary lymphoid tissues, including lymph nodes. Involved in lineage specification of uncommitted CD4(+) T-helper cells into Th17 cells. Regulate the expression of several components of the circadian clock.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ky/3kyt_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ky/3kyt_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3kyt ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3kyt ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
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.
Structural basis for hydroxycholesterols as natural ligands of orphan nuclear receptor RORgamma.,Jin L, Martynowski D, Zheng S, Wada T, Xie W, Li Y Mol Endocrinol. 2010 May;24(5):923-9. Epub 2010 Mar 4. PMID:20203100<ref>PMID:20203100</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3kyt" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Li, Y]]
[[Category: Large Structures]]
[[Category: Martynowski, D]]
[[Category: Li Y]]
[[Category: Activator]]
[[Category: Martynowski D]]
[[Category: Dna-binding]]
[[Category: Lipid binding protein]]
[[Category: Metal-binding]]
[[Category: Nuclear receptor]]
[[Category: Nucleus]]
[[Category: Phosphoprotein]]
[[Category: Receptor]]
[[Category: Ror]]
[[Category: Transcription]]
[[Category: Transcription regulation]]
[[Category: Zinc-finger]]
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