View source for 3gyp


==Rtt106p==
<StructureSection load='3gyp' size='340' side='right'caption='[[3gyp]], [[Resolution|resolution]] 2.41&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3gyp]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3GYP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3GYP 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]] 2.406&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BME:BETA-MERCAPTOETHANOL'>BME</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</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=3gyp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3gyp OCA], [https://pdbe.org/3gyp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3gyp RCSB], [https://www.ebi.ac.uk/pdbsum/3gyp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3gyp ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/RT106_YEAST RT106_YEAST] Histones H3 and H4 chaperone involved in the nucleosome formation and heterochromatin silencing. Required for the deposition of H3K56ac-carrying H3-H4 complex onto newly-replicated DNA. Plays a role in the transcriptional regulation of the cell-cycle dependent histone genes by directly recruiting the SWI/SNF and RSC chromatin remodeling complexes to the histone genes in a cell cycle dependent manner. In cooperation with HIR and ASF1, creates a repressive structure at the core histone gene promoter and contributes to their repression outside of S phase. Involved in regulation of Ty1 transposition.<ref>PMID:11779788</ref> <ref>PMID:16157874</ref> <ref>PMID:17410207</ref> <ref>PMID:19683497</ref> <ref>PMID:20188666</ref> <ref>PMID:21763693</ref> <ref>PMID:22156209</ref> <ref>PMID:21444721</ref> <ref>PMID:21698254</ref> <ref>PMID:21978826</ref> <ref>PMID:22128187</ref> <ref>PMID:20007951</ref> 
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gy/3gyp_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=3gyp ConSurf].
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== Publication Abstract from PubMed ==
Rtt106p is a Saccharomyces cerevisiae histone chaperone with roles in heterochromatin silencing and nucleosome assembly. The molecular mechanism by which Rtt106p engages in chromatin dynamics remains unclear. Here, we report the 2.5 A crystal structure of the core domain of Rtt106p, which adopts an unusual "double pleckstrin homology" domain architecture that represents a novel structural mode for histone chaperones. A histone H3-H4-binding region and a novel double-stranded DNA-binding region have been identified. Mutagenesis studies reveal that the histone and DNA binding activities of Rtt106p are involved in Sir protein-mediated heterochromatin formation. Our results uncover the structural basis of the diverse functions of Rtt106p and provide new insights into its cellular roles.

Structural analysis of Rtt106p reveals a DNA binding role required for heterochromatin silencing.,Liu Y, Huang H, Zhou BO, Wang SS, Hu Y, Li X, Liu J, Zang J, Niu L, Wu J, Zhou JQ, Teng M, Shi Y J Biol Chem. 2010 Feb 5;285(6):4251-62. Epub 2009 Dec 10. PMID:20007951<ref>PMID:20007951</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 3gyp" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Huang H]]
[[Category: Liu Y]]
[[Category: Shi Y]]
[[Category: Teng M]]