3biy

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<StructureSection load='3biy' size='340' side='right'caption='[[3biy]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
<StructureSection load='3biy' size='340' side='right'caption='[[3biy]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3biy]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. The February 2010 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Enhanceosome'' by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2010_2 10.2210/rcsb_pdb/mom_2010_2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BIY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3BIY FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3biy]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. The February 2010 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Enhanceosome'' by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2010_2 10.2210/rcsb_pdb/mom_2010_2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BIY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3BIY FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=01K:[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl]methyl+(3R,20R)-20-carbamoyl-3-hydroxy-2,2-dimethyl-4,8,14,22-tetraoxo-12-thia-5,9,15,21-tetraazatricos-1-yl+dihydrogen+diphosphate'>01K</scene>, <scene name='pdbligand=BR:BROMIDE+ION'>BR</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">EP300, P300 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=01K:[(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl]methyl+(3R,20R)-20-carbamoyl-3-hydroxy-2,2-dimethyl-4,8,14,22-tetraoxo-12-thia-5,9,15,21-tetraazatricos-1-yl+dihydrogen+diphosphate'>01K</scene>, <scene name='pdbligand=BR:BROMIDE+ION'>BR</scene></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Histone_acetyltransferase Histone acetyltransferase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.48 2.3.1.48] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3biy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3biy OCA], [https://pdbe.org/3biy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3biy RCSB], [https://www.ebi.ac.uk/pdbsum/3biy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3biy ProSAT]</span></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=3biy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3biy OCA], [https://pdbe.org/3biy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3biy RCSB], [https://www.ebi.ac.uk/pdbsum/3biy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3biy ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
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[[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>
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[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 ==
== Function ==
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[[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>
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[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>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3biy ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3biy ConSurf].
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== Publication Abstract from PubMed ==
 
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The transcriptional coactivator p300/CBP (CREBBP) is a histone acetyltransferase (HAT) that regulates gene expression by acetylating histones and other transcription factors. Dysregulation of p300/CBP HAT activity contributes to various diseases including cancer. Sequence alignments, enzymology experiments and inhibitor studies on p300/CBP have led to contradictory results about its catalytic mechanism and its structural relation to the Gcn5/PCAF and MYST HATs. Here we describe a high-resolution X-ray crystal structure of a semi-synthetic heterodimeric p300 HAT domain in complex with a bi-substrate inhibitor, Lys-CoA. This structure shows that p300/CBP is a distant cousin of other structurally characterized HATs, but reveals several novel features that explain the broad substrate specificity and preference for nearby basic residues. Based on this structure and accompanying biochemical data, we propose that p300/CBP uses an unusual 'hit-and-run' (Theorell-Chance) catalytic mechanism that is distinct from other characterized HATs. Several disease-associated mutations can also be readily accounted for by the p300 HAT structure. These studies pave the way for new epigenetic therapies involving modulation of p300/CBP HAT activity.
 
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The structural basis of protein acetylation by the p300/CBP transcriptional coactivator.,Liu X, Wang L, Zhao K, Thompson PR, Hwang Y, Marmorstein R, Cole PA Nature. 2008 Feb 14;451(7180):846-50. PMID:18273021<ref>PMID:18273021</ref>
 
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
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</div>
 
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<div class="pdbe-citations 3biy" style="background-color:#fffaf0;"></div>
 
==See Also==
==See Also==
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</StructureSection>
</StructureSection>
[[Category: Enhanceosome]]
[[Category: Enhanceosome]]
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[[Category: Histone acetyltransferase]]
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[[Category: Homo sapiens]]
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[[Category: Human]]
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[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: RCSB PDB Molecule of the Month]]
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[[Category: Cole, P A]]
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[[Category: Cole PA]]
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[[Category: Hwang, Y]]
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[[Category: Hwang Y]]
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[[Category: Liu, X]]
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[[Category: Liu X]]
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[[Category: Marmorstein, R]]
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[[Category: Marmorstein R]]
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[[Category: Thompson, P R]]
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[[Category: Thompson PR]]
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[[Category: Wang, L]]
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[[Category: Wang L]]
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[[Category: Zhao, K]]
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[[Category: Zhao K]]
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[[Category: Bisubstrate inhibitor]]
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[[Category: P300 hat]]
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[[Category: Protein-inhibitor complex]]
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[[Category: Transferase]]
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Current revision

Crystal structure of p300 histone acetyltransferase domain in complex with a bisubstrate inhibitor, Lys-CoA

PDB ID 3biy

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