View source for 6ddj


==Crystal Structure of the human BRD2 BD2 bromodimain in complex with a Tetrahydroquinoline analogue==
<StructureSection load='6ddj' size='340' side='right'caption='[[6ddj]], [[Resolution|resolution]] 1.05&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6ddj]] 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=6DDJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6DDJ 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]] 1.05&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=G7V:4-{[(2S,4R)-1-acetyl-2-methyl-6-(1H-pyrazol-3-yl)-1,2,3,4-tetrahydroquinolin-4-yl]amino}benzonitrile'>G7V</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=6ddj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ddj OCA], [https://pdbe.org/6ddj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ddj RCSB], [https://www.ebi.ac.uk/pdbsum/6ddj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ddj 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 ==
Inhibition of members of the bromodomain and extraterminal (BET) family of proteins has proven a valid strategy for cancer chemotherapy. All BET identified to date contain two bromodomains (BD; BD1 and BD2) that are necessary for recognition of acetylated lysine residues in the N-terminal regions of histones. Chemical matter that targets BET (BETi) also interact via these domains. Molecular and cellular data indicate that BD1 and BD2 have different biological roles depending upon their cellular context, with BD2 particularly associated with cancer. We have therefore pursued the development of BD2-selective molecules both as chemical probes and as potential leads for drug development. Here we report the structure-based generation of a novel series of tetrahydroquinoline analogs that exhibit &gt;50-fold selectivity for BD2 versus BD1. This selective targeting resulted in engagement with BD-containing proteins in cells, resulting in modulation of MYC proteins and downstream targets. These compounds were potent cytotoxins toward numerous pediatric cancer cell lines and were minimally toxic to nontumorigenic cells. In addition, unlike the pan BETi (+)-JQ1, these BD2-selective inhibitors demonstrated no rebound expression effects. Finally, we report a pharmacokinetic-optimized, metabolically stable derivative that induced growth delay in a neuroblastoma xenograft model with minimal toxicity. We conclude that BD2-selective agents are valid candidates for antitumor drug design for pediatric malignancies driven by the MYC oncogene. SIGNIFICANCE: This study presents bromodomain-selective BET inhibitors that act as antitumor agents and demonstrates that these molecules have in vivo activity towards neuroblastoma, with essentially no toxicity.

Bromodomain-Selective BET Inhibitors Are Potent Antitumor Agents against MYC-Driven Pediatric Cancer.,Slavish PJ, Chi L, Yun MK, Tsurkan L, Martinez NE, Jonchere B, Chai SC, Connelly M, Waddell MB, Das S, Neale G, Li Z, Shadrick WR, Olsen RR, Freeman KW, Low JA, Price JE, Young BM, Bharatham N, Boyd VA, Yang J, Lee RE, Morfouace M, Roussel MF, Chen T, Savic D, Guy RK, White SW, Shelat AA, Potter PM Cancer Res. 2020 Sep 1;80(17):3507-3518. doi: 10.1158/0008-5472.CAN-19-3934. Epub, 2020 Jul 10. PMID:32651255<ref>PMID:32651255</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6ddj" style="background-color:#fffaf0;"></div>

==See Also==
*[[Bromodomain-containing protein 3D structures|Bromodomain-containing protein 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: White SW]]
[[Category: Yun M]]