3a01

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[[Image:3a01.png|left|200px]]
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==Crystal structure of Aristaless and Clawless homeodomains bound to DNA==
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<StructureSection load='3a01' size='340' side='right' caption='[[3a01]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3a01]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A01 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3A01 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3a02|3a02]], [[3a03|3a03]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">C15, CG7937 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 Drosophila melanogaster]), al, CG3935 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 Drosophila melanogaster])</td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3a01 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a01 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3a01 RCSB], [http://www.ebi.ac.uk/pdbsum/3a01 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/a0/3a01_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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To achieve accurate gene regulation, some homeodomain proteins bind cooperatively to DNA to increase those site specificities. We report a ternary complex structure containing two homeodomain proteins, aristaless (Al) and clawless (Cll), bound to DNA. Our results show that the extended conserved sequences of the Cll homeodomain are indispensable to cooperative DNA binding. In the Al-Cll-DNA complex structure, the residues in the extended regions are used not only for the intermolecular contacts between the two homeodomain proteins but also for the sequence-recognition mechanism of DNA by direct interactions. The residues in the extended N-terminal arm lie within the minor groove of DNA to form direct interactions with bases, whereas the extended conserved region of the C-terminus of the homeodomain interacts with Al to stabilize and localize the third alpha helix of the Cll homeodomain. This structure suggests a novel mode for the cooperativity of homeodomain proteins.
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{{STRUCTURE_3a01| PDB=3a01 | SCENE= }}
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Cooperative DNA-binding and sequence-recognition mechanism of aristaless and clawless.,Miyazono K, Zhi Y, Takamura Y, Nagata K, Saigo K, Kojima T, Tanokura M EMBO J. 2010 May 5;29(9):1613-23. Epub 2010 Apr 13. PMID:20389279<ref>PMID:20389279</ref>
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===Crystal structure of Aristaless and Clawless homeodomains bound to 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_20389279}}
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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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[[3a01]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A01 OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:020389279</ref><references group="xtra"/>
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[[Category: Drosophila melanogaster]]
[[Category: Drosophila melanogaster]]
[[Category: Kojima, T.]]
[[Category: Kojima, T.]]

Revision as of 05:01, 2 October 2014

Crystal structure of Aristaless and Clawless homeodomains bound to DNA

3a01, resolution 2.70Å

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