1zla
From Proteopedia
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| - | [[Image:1zla.gif|left|200px]]<br /><applet load="1zla" size="350" color="white" frame="true" align="right" spinBox="true" | ||
| - | caption="1zla, resolution 2.9Å" /> | ||
| - | '''X-ray Structure of a Kaposi's sarcoma herpesvirus LANA peptide bound to the nucleosomal core'''<br /> | ||
| - | == | + | ==X-ray Structure of a Kaposi's sarcoma herpesvirus LANA peptide bound to the nucleosomal core== |
| + | <StructureSection load='1zla' size='340' side='right'caption='[[1zla]], [[Resolution|resolution]] 2.90Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1zla]] is a 11 chain structure with sequence from [https://en.wikipedia.org/wiki/Expression_vector_pET3-H2A Expression vector pET3-H2A], [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens], [https://en.wikipedia.org/wiki/Human_gammaherpesvirus_8 Human gammaherpesvirus 8] and [https://en.wikipedia.org/wiki/Xenopus_laevis Xenopus laevis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZLA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZLA 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]] 2.9Å</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=1zla FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zla OCA], [https://pdbe.org/1zla PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zla RCSB], [https://www.ebi.ac.uk/pdbsum/1zla PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zla ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/H4_XENLA H4_XENLA] Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling. | ||
| + | == 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/zl/1zla_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=1zla ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
Kaposi's sarcoma-associated herpesvirus (KSHV) latency-associated nuclear antigen (LANA) mediates viral genome attachment to mitotic chromosomes. We find that N-terminal LANA docks onto chromosomes by binding nucleosomes through the folded region of histones H2A-H2B. The same LANA residues were required for both H2A-H2B binding and chromosome association. Further, LANA did not bind Xenopus sperm chromatin, which is deficient in H2A-H2B; chromatin binding was rescued after assembly of nucleosomes containing H2A-H2B. We also describe the 2.9-angstrom crystal structure of a nucleosome complexed with the first 23 LANA amino acids. The LANA peptide forms a hairpin that interacts exclusively with an acidic H2A-H2B region that is implicated in the formation of higher order chromatin structure. Our findings present a paradigm for how nucleosomes may serve as binding platforms for viral and cellular proteins and reveal a previously unknown mechanism for KSHV latency. | Kaposi's sarcoma-associated herpesvirus (KSHV) latency-associated nuclear antigen (LANA) mediates viral genome attachment to mitotic chromosomes. We find that N-terminal LANA docks onto chromosomes by binding nucleosomes through the folded region of histones H2A-H2B. The same LANA residues were required for both H2A-H2B binding and chromosome association. Further, LANA did not bind Xenopus sperm chromatin, which is deficient in H2A-H2B; chromatin binding was rescued after assembly of nucleosomes containing H2A-H2B. We also describe the 2.9-angstrom crystal structure of a nucleosome complexed with the first 23 LANA amino acids. The LANA peptide forms a hairpin that interacts exclusively with an acidic H2A-H2B region that is implicated in the formation of higher order chromatin structure. Our findings present a paradigm for how nucleosomes may serve as binding platforms for viral and cellular proteins and reveal a previously unknown mechanism for KSHV latency. | ||
| - | + | The nucleosomal surface as a docking station for Kaposi's sarcoma herpesvirus LANA.,Barbera AJ, Chodaparambil JV, Kelley-Clarke B, Joukov V, Walter JC, Luger K, Kaye KM Science. 2006 Feb 10;311(5762):856-61. PMID:16469929<ref>PMID:16469929</ref> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | [[Category: Expression vector | + | <div class="pdbe-citations 1zla" style="background-color:#fffaf0;"></div> |
| + | |||
| + | ==See Also== | ||
| + | *[[Histone 3D structures|Histone 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Expression vector pET3-H2A]] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
| - | [[Category: | + | [[Category: Human gammaherpesvirus 8]] |
| + | [[Category: Large Structures]] | ||
[[Category: Xenopus laevis]] | [[Category: Xenopus laevis]] | ||
| - | [[Category: Barbera | + | [[Category: Barbera AJ]] |
| - | [[Category: Chodaparambil | + | [[Category: Chodaparambil JV]] |
| - | [[Category: Kaye | + | [[Category: Kaye KM]] |
| - | [[Category: Luger | + | [[Category: Luger K]] |
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Current revision
X-ray Structure of a Kaposi's sarcoma herpesvirus LANA peptide bound to the nucleosomal core
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