View source for 4ypq


==Crystal structure of the ROR(gamma)t ligand binding domain in complex with 4-(1-(2-chloro-6-(trifluoromethyl)benzoyl)-1H-indazol-3-yl)benzoic acid==
<StructureSection load='4ypq' size='340' side='right'caption='[[4ypq]], [[Resolution|resolution]] 2.32&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4ypq]] is a 1 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=4YPQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4YPQ FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.32&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=4F1:4-{1-[2-CHLORO-6-(TRIFLUOROMETHYL)BENZOYL]-1H-INDAZOL-3-YL}BENZOIC+ACID'>4F1</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=4ypq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ypq OCA], [https://pdbe.org/4ypq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ypq RCSB], [https://www.ebi.ac.uk/pdbsum/4ypq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ypq ProSAT]</span></td></tr>
</table>
== Function ==
[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.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
RORgammat is critical for the differentiation and proliferation of Th17 cells associated with several chronic autoimmune diseases. We report the discovery of a novel allosteric binding site on the nuclear receptor RORgammat. Co-crystallization of the ligand binding domain (LBD) of RORgammat with a series of small-molecule antagonists demonstrates occupancy of a previously unreported allosteric binding pocket. Binding at this non-canonical site induces an unprecedented conformational reorientation of helix 12 in the RORgammat LBD, which blocks cofactor binding. The functional consequence of this allosteric ligand-mediated conformation is inhibition of function as evidenced by both biochemical and cellular studies. RORgammat function is thus antagonized in a manner molecularly distinct from that of previously described orthosteric RORgammat ligands. This brings forward an approach to target RORgammat for the treatment of Th17-mediated autoimmune diseases. The elucidation of an unprecedented modality of pharmacological antagonism establishes a mechanism for modulation of nuclear receptors.

Identification of an allosteric binding site for RORgammat inhibition.,Scheepstra M, Leysen S, van Almen GC, Miller JR, Piesvaux J, Kutilek V, van Eenennaam H, Zhang H, Barr K, Nagpal S, Soisson SM, Kornienko M, Wiley K, Elsen N, Sharma S, Correll CC, Trotter BW, van der Stelt M, Oubrie A, Ottmann C, Parthasarathy G, Brunsveld L Nat Commun. 2015 Dec 7;6:8833. doi: 10.1038/ncomms9833. PMID:26640126<ref>PMID:26640126</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4ypq" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Brunsveld L]]
[[Category: Leysen S]]
[[Category: Ottmann C]]
[[Category: Scheepstra M]]
[[Category: Van Almen GC]]