1c3s: Difference between revisions

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[[Image:1c3s.jpg|left|200px]]


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==CRYSTAL STRUCTURE OF AN HDAC HOMOLOG COMPLEXED WITH SAHA==
The line below this paragraph, containing "STRUCTURE_1c3s", creates the "Structure Box" on the page.
<StructureSection load='1c3s' size='340' side='right'caption='[[1c3s]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1c3s]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Aquifex_aeolicus Aquifex aeolicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1C3S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1C3S FirstGlance]. <br>
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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]] 2.5&#8491;</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=SHH:OCTANEDIOIC+ACID+HYDROXYAMIDE+PHENYLAMIDE'>SHH</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
{{STRUCTURE_1c3s|  PDB=1c3s  |  SCENE= }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1c3s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1c3s OCA], [https://pdbe.org/1c3s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1c3s RCSB], [https://www.ebi.ac.uk/pdbsum/1c3s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1c3s ProSAT]</span></td></tr>
 
</table>
'''CRYSTAL STRUCTURE OF AN HDAC HOMOLOG COMPLEXED WITH SAHA'''
== Function ==
 
[https://www.uniprot.org/uniprot/O67135_AQUAE O67135_AQUAE]
 
== Evolutionary Conservation ==
==Overview==
[[Image:Consurf_key_small.gif|200px|right]]
Histone deacetylases (HDACs) mediate changes in nucleosome conformation and are important in the regulation of gene expression. HDACs are involved in cell-cycle progression and differentiation, and their deregulation is associated with several cancers. HDAC inhibitors, such as trichostatin A (TSA) and suberoylanilide hydroxamic acid (SAHA), have anti-tumour effects, as they can inhibit cell growth, induce terminal differentiation and prevent the formation of tumours in mice models, and they are effective in the treatment of promyelocytic leukemia. Here we describe the structure of the histone deacetylase catalytic core, as revealed by the crystal structure of a homologue from the hyperthermophilic bacterium Aquifex aeolicus, that shares 35.2% identity with human HDAC1 over 375 residues, deacetylates histones in vitro and is inhibited by TSA and SAHA. The deacetylase, deacetylase-TSA and deacetylase-SAHA structures reveal an active site consisting of a tubular pocket, a zinc-binding site and two Asp-His charge-relay systems, and establish the mechanism of HDAC inhibition. The residues that make up the active site and contact the inhibitors are conserved across the HDAC family. These structures also suggest a mechanism for the deacetylation reaction and provide a framework for the further development of HDAC inhibitors as antitumour agents.
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==About this Structure==
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/c3/1c3s_consurf.spt"</scriptWhenChecked>
1C3S is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Aquifex_aeolicus Aquifex aeolicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1C3S OCA].  
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    <text>to colour the structure by Evolutionary Conservation</text>
==Reference==
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Structures of a histone deacetylase homologue bound to the TSA and SAHA inhibitors., Finnin MS, Donigian JR, Cohen A, Richon VM, Rifkind RA, Marks PA, Breslow R, Pavletich NP, Nature. 1999 Sep 9;401(6749):188-93. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10490031 10490031]
</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=1c3s ConSurf].
<div style="clear:both"></div>
__TOC__
</StructureSection>
[[Category: Aquifex aeolicus]]
[[Category: Aquifex aeolicus]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Donigian, J R.]]
[[Category: Donigian JR]]
[[Category: Finnin, M S.]]
[[Category: Finnin MS]]
[[Category: Pavletich, N P.]]
[[Category: Pavletich NP]]
[[Category: Alpha/beta fold]]
[[Category: Charge-relay system]]
[[Category: Hydroxamic acid]]
[[Category: Penta-coordinated zinc]]
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