View source for 8gzc


==Crystal structure of EP300 HAT domain in complex with compound 10==
<StructureSection load='8gzc' size='340' side='right'caption='[[8gzc]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8gzc]] is a 2 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=8GZC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8GZC 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]] 2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=KQO:(2~{R},4~{R})-4-fluoranyl-1-[1-(4-methoxyphenyl)cyclohexyl]carbonyl-~{N}-(1~{H}-pyrazolo[4,3-b]pyridin-5-yl)pyrrolidine-2-carboxamide'>KQO</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=8gzc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8gzc OCA], [https://pdbe.org/8gzc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8gzc RCSB], [https://www.ebi.ac.uk/pdbsum/8gzc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8gzc ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/EP300_HUMAN EP300_HUMAN] Note=Defects in EP300 may play a role in epithelial cancer.  Note=Chromosomal aberrations involving EP300 may be a cause of acute myeloid leukemias. Translocation t(8;22)(p11;q13) with KAT6A.  Defects in EP300 are the cause of Rubinstein-Taybi syndrome type 2 (RSTS2) [MIM:[https://omim.org/entry/613684 613684]. A disorder characterized by craniofacial abnormalities, postnatal growth deficiency, broad thumbs, broad big toes, mental retardation and a propensity for development of malignancies. Some individuals with RSTS2 have less severe mental impairment, more severe microcephaly, and a greater degree of changes in facial bone structure than RSTS1 patients.<ref>PMID:15706485</ref> 
== Function ==
[https://www.uniprot.org/uniprot/EP300_HUMAN EP300_HUMAN] Functions as histone acetyltransferase and regulates transcription via chromatin remodeling. Acetylates all four core histones in nucleosomes. Histone acetylation gives an epigenetic tag for transcriptional activation. Mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. Also functions as acetyltransferase for nonhistone targets. Acetylates 'Lys-131' of ALX1 and acts as its coactivator in the presence of CREBBP. Acetylates SIRT2 and is proposed to indirectly increase the transcriptional activity of TP53 through acetylation and subsequent attenuation of SIRT2 deacetylase function. Acetylates HDAC1 leading to its inactivation and modulation of transcription. Acts as a TFAP2A-mediated transcriptional coactivator in presence of CITED2. Plays a role as a coactivator of NEUROD1-dependent transcription of the secretin and p21 genes and controls terminal differentiation of cells in the intestinal epithelium. Promotes cardiac myocyte enlargement. Can also mediate transcriptional repression. Binds to and may be involved in the transforming capacity of the adenovirus E1A protein. In case of HIV-1 infection, it is recruited by the viral protein Tat. Regulates Tat's transactivating activity and may help inducing chromatin remodeling of proviral genes. Acetylates FOXO1 and enhances its transcriptional activity.<ref>PMID:11701890</ref> <ref>PMID:10733570</ref> <ref>PMID:11430825</ref> <ref>PMID:12586840</ref> <ref>PMID:12929931</ref> <ref>PMID:15186775</ref> <ref>PMID:15890677</ref> <ref>PMID:16762839</ref> <ref>PMID:18722353</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Histone acetylation is a post-translational modification of histones that is catalyzed by histone acetyltransferases (HATs) and plays an essential role in cellular processes. The HAT domain of EP300/CBP has recently emerged as a potential drug target for cancer therapy. Here, we describe the identification of the novel, highly potent, and selective EP300/CBP HAT inhibitor DS-9300. Our optimization efforts using a structure-based drug design approach based on the cocrystal structures of the EP300 HAT domain in complex with compounds 2 and 3 led to the identification of compounds possessing low-nanomolar EP300 HAT inhibitory potency and the ability to inhibit cellular acetylation of histone H3K27. Optimization of the pharmacokinetic properties in this series resulted in compounds with excellent oral systemic exposure, and once-daily oral administration of 16 (DS-9300) demonstrated potent antitumor effects in a castrated VCaP xenograft mouse model without significant body weight loss.

Discovery of DS-9300: A Highly Potent, Selective, and Once-Daily Oral EP300/CBP Histone Acetyltransferase Inhibitor.,Kanada R, Kagoshima Y, Suzuki T, Nakamura A, Funami H, Watanabe J, Asano M, Takahashi M, Ubukata O, Suzuki K, Aikawa T, Sato K, Goto M, Setsu G, Ito K, Kihara K, Kuroha M, Kohno T, Ogiwara H, Isoyama T, Tominaga Y, Higuchi S, Naito H J Med Chem. 2022 Dec 26. doi: 10.1021/acs.jmedchem.2c01641. PMID:36572866<ref>PMID:36572866</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8gzc" style="background-color:#fffaf0;"></div>

==See Also==
*[[Histone acetyltransferase 3D structures|Histone acetyltransferase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Hanzawa H]]
[[Category: Takahashi M]]