3eyi

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[[Image:3eyi.png|left|200px]]
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==The crystal structure of the second Z-DNA binding domain of human DAI (ZBP1) in complex with Z-DNA==
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<StructureSection load='3eyi' size='340' side='right' caption='[[3eyi]], [[Resolution|resolution]] 1.45&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3eyi]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EYI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3EYI FirstGlance]. <br>
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</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">C20orf183, DLM1, ZBP1, ZBP1/DLM1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3eyi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3eyi OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3eyi RCSB], [http://www.ebi.ac.uk/pdbsum/3eyi PDBsum]</span></td></tr>
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</table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ey/3eyi_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Mammalian DAI (DNA-dependent activator of IFN-regulatory factors), an activator of the innate immune response, senses cytosolic DNA by using 2 N-terminal Z-DNA binding domains (ZBDs) and a third putative DNA binding domain located next to the second ZBD. Compared with other previously known ZBDs, the second ZBD of human DAI (hZbeta(DAI)) shows significant variation in the sequence of the residues that are essential for DNA binding. In this article, the crystal structure of the hZbeta(DAI)/Z-DNA complex reveals that hZbeta(DAI) has a similar fold to that of other ZBDs, but adopts an unusual binding mode for recognition of Z-DNA. A residue in the first beta-strand rather than residues in the beta-loop contributes to DNA binding, and part of the (alpha3) recognition helix adopts a 3(10) helix conformation. The role of each residue that makes contact with DNA was confirmed by mutational analysis. The 2 ZBDs of DAI can together bind to DNA and both are necessary for full B-to-Z conversion. It is possible that binding 2 DAIs to 1 dsDNA brings about dimerization of DAI that might facilitate DNA-mediated innate immune activation.
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{{STRUCTURE_3eyi| PDB=3eyi | SCENE= }}
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The crystal structure of the second Z-DNA binding domain of human DAI (ZBP1) in complex with Z-DNA reveals an unusual binding mode to Z-DNA.,Ha SC, Kim D, Hwang HY, Rich A, Kim YG, Kim KK Proc Natl Acad Sci U S A. 2008 Dec 30;105(52):20671-6. Epub 2008 Dec 18. PMID:19095800<ref>PMID:19095800</ref>
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===The crystal structure of the second Z-DNA binding domain of human DAI (ZBP1) in complex with Z-DNA===
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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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{{ABSTRACT_PUBMED_19095800}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[3eyi]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EYI OCA].
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Ha, S C.]]
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[[Category: Ha, S C]]
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[[Category: Kim, K K.]]
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[[Category: Kim, K K]]
[[Category: Dna binding protein-dna complex]]
[[Category: Dna binding protein-dna complex]]
[[Category: Dna binding protein-z-dna complex]]
[[Category: Dna binding protein-z-dna complex]]
[[Category: Dna-binding]]
[[Category: Dna-binding]]

Revision as of 08:52, 26 November 2014

The crystal structure of the second Z-DNA binding domain of human DAI (ZBP1) in complex with Z-DNA

3eyi, resolution 1.45Å

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