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4mr4

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Revision as of 14:44, 4 August 2016

Crystal Structure of the first bromodomain of human BRD4 in complex with a quinazolinone ligand (RVX-208)

Structural highlights

4mr4 is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	4mr3, 4mr5, 4mr6
Gene:	BRD4, HUNK1 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[BRD4_HUMAN] Note=A chromosomal aberration involving BRD4 is found in a rare, aggressive, and lethal carcinoma arising in midline organs of young people. Translocation t(15;19)(q14;p13) with NUT which produces a BRD4-NUT fusion protein.^[1] ^[2]

Function

[BRD4_HUMAN] Plays a role in a process governing chromosomal dynamics during mitosis (By similarity).

Publication Abstract from PubMed

Bromodomains have emerged as attractive candidates for the development of inhibitors targeting gene transcription. Inhibitors of the bromo and extraterminal (BET) family recently showed promising activity in diverse disease models. However, the pleiotropic nature of BET proteins regulating tissue-specific transcription has raised safety concerns and suggested that attempts should be made for domain-specific targeting. Here, we report that RVX-208, a compound currently in phase II clinical trials, is a BET bromodomain inhibitor specific for second bromodomains (BD2s). Cocrystal structures revealed binding modes of RVX-208 and its synthetic precursor, and fluorescent recovery after photobleaching demonstrated that RVX-208 displaces BET proteins from chromatin. However, gene-expression data showed that BD2 inhibition only modestly affects BET-dependent gene transcription. Our data demonstrate the feasibility of specific targeting within the BET family resulting in different transcriptional outcomes and highlight the importance of BD1 in transcriptional regulation.

RVX-208, an inhibitor of BET transcriptional regulators with selectivity for the second bromodomain.,Picaud S, Wells C, Felletar I, Brotherton D, Martin S, Savitsky P, Diez-Dacal B, Philpott M, Bountra C, Lingard H, Fedorov O, Muller S, Brennan PE, Knapp S, Filippakopoulos P Proc Natl Acad Sci U S A. 2013 Nov 18. PMID:24248379^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ French CA, Miyoshi I, Kubonishi I, Grier HE, Perez-Atayde AR, Fletcher JA. BRD4-NUT fusion oncogene: a novel mechanism in aggressive carcinoma. Cancer Res. 2003 Jan 15;63(2):304-7. PMID:12543779
↑ French CA, Miyoshi I, Aster JC, Kubonishi I, Kroll TG, Dal Cin P, Vargas SO, Perez-Atayde AR, Fletcher JA. BRD4 bromodomain gene rearrangement in aggressive carcinoma with translocation t(15;19). Am J Pathol. 2001 Dec;159(6):1987-92. PMID:11733348 doi:10.1016/S0002-9440(10)63049-0
↑ Picaud S, Wells C, Felletar I, Brotherton D, Martin S, Savitsky P, Diez-Dacal B, Philpott M, Bountra C, Lingard H, Fedorov O, Muller S, Brennan PE, Knapp S, Filippakopoulos P. RVX-208, an inhibitor of BET transcriptional regulators with selectivity for the second bromodomain. Proc Natl Acad Sci U S A. 2013 Nov 18. PMID:24248379 doi:http://dx.doi.org/10.1073/pnas.1310658110

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4mr4"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of the first bromodomain of human BRD4 in complex with a quinazolinone ligand (RVX-208)==
 <StructureSection load='4mr4' size='340' side='right' caption='[[4mr4]], [[Resolution|resolution]] 1.66&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4mr3|4mr3]], [[4mr5|4mr5]], [[4mr6|4mr6]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BRD4, HUNK1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4mr4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4mr4 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4mr4 RCSB], [http://www.ebi.ac.uk/pdbsum/4mr4 PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4mr4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4mr4 OCA], [http://pdbe.org/4mr4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4mr4 RCSB], [http://www.ebi.ac.uk/pdbsum/4mr4 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4mr4 ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 20: / Line 21: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4mr4" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Bromodomain-containing protein|Bromodomain-containing protein]]
 == References ==
 <references/>

4mr4

From Proteopedia

Revision as of 14:44, 4 August 2016

Crystal Structure of the first bromodomain of human BRD4 in complex with a quinazolinone ligand (RVX-208)

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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