View source for 7np5


==ROR(gamma)t ligand binding domain in complex with allosteric ligand FM216==
<StructureSection load='7np5' size='340' side='right'caption='[[7np5]], [[Resolution|resolution]] 1.55&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7np5]] 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=7NP5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7NP5 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]] 1.55&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=UKB:4-[[3-[2-chloranyl-6-(trifluoromethyl)phenyl]-5-(1~{H}-pyrrol-3-yl)-1,2-oxazol-4-yl]methoxy]-2-fluoranyl-benzoic+acid'>UKB</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=7np5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7np5 OCA], [https://pdbe.org/7np5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7np5 RCSB], [https://www.ebi.ac.uk/pdbsum/7np5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7np5 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.
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== Publication Abstract from PubMed ==
The inhibition of the nuclear receptor retinoic-acid-receptor-related orphan receptor gammat (RORgammat) is a promising strategy in the treatment of autoimmune diseases. RORgammat features an allosteric binding site within its ligand-binding domain that provides an opportunity to overcome drawbacks associated with orthosteric modulators. Recently, trisubstituted isoxazoles were identified as a novel class of allosteric RORgammat inverse agonists. This chemotype offers new opportunities for optimization into selective and efficacious allosteric drug-like molecules. Here, we explore the structure-activity relationship profile of the isoxazole series utilizing a combination of structure-based design, X-ray crystallography, and biochemical assays. The initial lead isoxazole (FM26) was optimized, resulting in compounds with a approximately 10-fold increase in potency (low nM), significant cellular activity, promising pharmacokinetic properties, and a good selectivity profile over the peroxisome-proliferated-activated receptor gamma and the farnesoid X receptor. We envisage that this work will serve as a platform for the accelerated development of isoxazoles and other novel chemotypes for the effective allosteric targeting of RORgammat.

Structure-Activity Relationship Studies of Trisubstituted Isoxazoles as Selective Allosteric Ligands for the Retinoic-Acid-Receptor-Related Orphan Receptor gammat.,Meijer FA, Saris AOWM, Doveston RG, Oerlemans GJM, de Vries RMJM, Somsen BA, Unger A, Klebl B, Ottmann C, Cossar PJ, Brunsveld L J Med Chem. 2021 May 19. doi: 10.1021/acs.jmedchem.1c00475. PMID:34008974<ref>PMID:34008974</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7np5" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Brunsveld L]]
[[Category: Meijer FA]]
[[Category: Oerlemans GJM]]
[[Category: Somsen BA]]
[[Category: De Vries RMJM]]