View source for 6jke


==Discovery and the crystal structure of NS5 in complex with the N-terminal bromodomain of BRD2.==
<StructureSection load='6jke' size='340' side='right'caption='[[6jke]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6jke]] is a 3 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=6JKE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6JKE 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]] 1.5&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BUX:7-chloranyl-2-[(3-chlorophenyl)amino]pyrano[3,4-e][1,3]oxazine-4,5-dione'>BUX</scene>, <scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=DTT:2,3-DIHYDROXY-1,4-DITHIOBUTANE'>DTT</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=6jke FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6jke OCA], [https://pdbe.org/6jke PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6jke RCSB], [https://www.ebi.ac.uk/pdbsum/6jke PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6jke 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 ==
Glioblastoma (GBM) is the most common primary brain malignancy, rarely amenable to treatment with a high recurrence rate. GBM are prone to develop resistance to the current repertoire of drugs, including the first-line chemotherapeutic agents with frequent recurrence, limiting therapeutic success. Recent clinical data has evidenced the BRD2 and BRD4 of the BET family proteins as the new druggable targets against GBM. In this relevance, we have discovered a compound (pyrano 1,3 oxazine derivative; NSC 328111; NS5) as an inhibitor of hBRD2 by the rational structure-based approach. The crystal structure of the complex, refined to 1.5 A resolution, revealed that the NS5 ligand significantly binds to the N-terminal bromodomain (BD1) of BRD2 at the acetylated (Kac) histone binding site. The quantitative binding studies, by SPR and MST assay, indicate that NS5 binds to BD1 of BRD2 with a KD value of approximately 1.3 microM. The cell-based assay, in the U87MG glioma cells, confirmed that the discovered compound NS5 significantly attenuated proliferation and migration. Furthermore, evaluation at the translational level established significant inhibition of BRD2 upon treatment with NS5. Hence, we propose that the novel lead compound NS5 has an inhibitory effect on BRD2 in glioblastoma.

Novel pyrano 1,3 oxazine based ligand inhibits the epigenetic reader hBRD2 in glioblastoma.,Deshmukh P, Mathur S, Gangadharan G, Krishnappa G, Dalavaikodihalli Nanjaiah N, Padmanabhan B Biochem J. 2020 Jun 26;477(12):2263-2279. doi: 10.1042/BCJ20200339. PMID:32484211<ref>PMID:32484211</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6jke" 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: Deshmukh P]]
[[Category: Mathur S]]
[[Category: Padmanabhan B]]