View source for 8z69


==Crystal Structure of the second bromodomain of human BRD2 BD2 in complex with the inhibitor Y13195==
<StructureSection load='8z69' size='340' side='right'caption='[[8z69]], [[Resolution|resolution]] 1.77&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8z69]] is a 4 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=8Z69 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8Z69 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]] 1.77&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A1L0Y:7-[2-(4-fluoranyl-2,6-dimethyl-phenoxy)-5-(2-oxidanylpropan-2-yl)phenyl]-5-methyl-2-(2-phenyl-1~{H}-imidazol-5-yl)furo[3,2-c]pyridin-4-one'>A1L0Y</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=FMT:FORMIC+ACID'>FMT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</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=8z69 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8z69 OCA], [https://pdbe.org/8z69 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8z69 RCSB], [https://www.ebi.ac.uk/pdbsum/8z69 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8z69 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/BRD2_HUMAN BRD2_HUMAN] May play a role in spermatogenesis or folliculogenesis (By similarity). Binds hyperacetylated chromatin and plays a role in the regulation of transcription, probably by chromatin remodeling. Regulates transcription of the CCND1 gene. Plays a role in nucleosome assembly.<ref>PMID:18406326</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Pan-BD2 inhibitors have been shown to retain an antileukemia effect and display less dose-limiting toxicities than pan-BET inhibitors. However, it is necessary to consider the potential off-target toxicity associated with the inhibition of four BET BD2 proteins. To date, no BRD4 BD2 domain selective inhibitor has been reported. Based on our previous pan-BD2 inhibitor 12 (XY153), we successfully identified 16o (XY221) as the first BRD4 BD2-selective inhibitor. 16o demonstrated potent binding affinity for BRD4 BD2 (IC(50) = 5.8 nM), along with high pan-BD2 selectivity (667-fold over BRD4 BD1) and BRD4 BD2 domain selectivity (9-32-fold over BRD2/3/T BD2). The BRD4 BD2 selectivity of 16o was further confirmed by the BLI assay, showing 66-144-fold selectivity over other BET BD2 domains. 16o exhibited good liver microsomal stability (T(1/2) &gt; 120 min) and pharmacokinetic properties (F = 13.1%). These data indicate that 16o may serve as a valuable candidate for BRD4 BD2 advancing epigenetic research.

Discovery of the First BRD4 Second Bromodomain (BD2)-Selective Inhibitors.,Li J, Hu Q, Zhu R, Dong R, Shen H, Hu J, Zhang C, Zhang X, Xu T, Xiang Q, Zhang Y, Lin B, Zhao L, Wu X, Xu Y J Med Chem. 2024 Nov 27. doi: 10.1021/acs.jmedchem.4c02516. PMID:39602227<ref>PMID:39602227</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8z69" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Hu Q]]
[[Category: Li J]]
[[Category: Wu X]]
[[Category: Xu H]]
[[Category: Xu Y]]
[[Category: Zhang C]]
[[Category: Zhang Y]]
[[Category: Zhao X]]
[[Category: Zhu R]]