View source for 5i83


==Crystal structure of the bromodomain of human CREBBP bound to the benzodiazepinone G02773986==
<StructureSection load='5i83' size='340' side='right'caption='[[5i83]], [[Resolution|resolution]] 1.35&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5i83]] 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=5I83 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5I83 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]] 1.35&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=68Y:(4R)-4-METHYL-7-[(1R)-1-PHENYLETHOXY]-1,3,4,5-TETRAHYDRO-2H-1,5-BENZODIAZEPIN-2-ONE'>68Y</scene>, <scene name='pdbligand=SCN:THIOCYANATE+ION'>SCN</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=5i83 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5i83 OCA], [https://pdbe.org/5i83 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5i83 RCSB], [https://www.ebi.ac.uk/pdbsum/5i83 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5i83 ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/CBP_HUMAN CBP_HUMAN] Note=Chromosomal aberrations involving CREBBP may be a cause of acute myeloid leukemias. Translocation t(8;16)(p11;p13) with KAT6A; translocation t(11;16)(q23;p13.3) with MLL/HRX; translocation t(10;16)(q22;p13) with KAT6B. KAT6A-CREBBP may induce leukemia by inhibiting RUNX1-mediated transcription.  Defects in CREBBP are a cause of Rubinstein-Taybi syndrome type 1 (RSTS1) [MIM:[https://omim.org/entry/180849 180849]. RSTS1 is an autosomal dominant disorder characterized by craniofacial abnormalities, broad thumbs, broad big toes, mental retardation and a propensity for development of malignancies.<ref>PMID:11331617</ref> <ref>PMID:12114483</ref> <ref>PMID:12566391</ref> <ref>PMID:15706485</ref> 
== Function ==
[https://www.uniprot.org/uniprot/CBP_HUMAN CBP_HUMAN] Acetylates histones, giving a specific tag for transcriptional activation. Also acetylates non-histone proteins, like NCOA3 and FOXO1. Binds specifically to phosphorylated CREB and enhances its transcriptional activity toward cAMP-responsive genes. Acts as a coactivator of ALX1 in the presence of EP300.<ref>PMID:9707565</ref> <ref>PMID:11154691</ref> <ref>PMID:12738767</ref> <ref>PMID:12929931</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
CBP and EP300 are highly homologous, bromodomain-containing transcription coactivators involved in numerous cellular pathways relevant to oncology. As part of our effort to explore the potential therapeutic implications of selectively targeting bromodomains, we set out to identify a CBP/EP300 bromodomain inhibitor that was potent both in vitro and in cellular target engagement assays and was selective over the other members of the bromodomain family. Reported here is a series of cell-potent and selective probes of the CBP/EP300 bromodomains, derived from the fragment screening hit 4-methyl-1,3,4,5-tetrahydro-2H-benzo[b][1,4]diazepin-2-one.

Fragment-Based Discovery of a Selective and Cell-Active Benzodiazepinone CBP/EP300 Bromodomain Inhibitor (CPI-637).,Taylor AM, Cote A, Hewitt MC, Pastor R, Leblanc Y, Nasveschuk CG, Romero FA, Crawford TD, Cantone N, Jayaram H, Setser J, Murray J, Beresini MH, de Leon Boenig G, Chen Z, Conery AR, Cummings RT, Dakin LA, Flynn EM, Huang OW, Kaufman S, Keller PJ, Kiefer JR, Lai T, Li Y, Liao J, Liu W, Lu H, Pardo E, Tsui V, Wang J, Wang Y, Xu Z, Yan F, Yu D, Zawadzke L, Zhu X, Zhu X, Sims RJ 3rd, Cochran AG, Bellon S, Audia JE, Magnuson S, Albrecht BK ACS Med Chem Lett. 2016 Mar 15;7(5):531-6. doi: 10.1021/acsmedchemlett.6b00075., eCollection 2016 May 12. PMID:27190605<ref>PMID:27190605</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5i83" style="background-color:#fffaf0;"></div>

==See Also==
*[[CREB-binding protein 3D structures|CREB-binding protein 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Bellon SF]]
[[Category: Jayaram H]]
[[Category: Poy F]]
[[Category: Setser JW]]