4g92

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[[Image:4g92.jpg|left|200px]]
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==CCAAT-binding complex from Aspergillus nidulans with DNA==
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<StructureSection load='4g92' size='340' side='right' caption='[[4g92]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4g92]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/A._nidulans A. nidulans] and [http://en.wikipedia.org/wiki/Aspergillus_nidulans Aspergillus nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G92 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4G92 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1n1j|1n1j]], [[4g91|4g91]]</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">hapB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=162425 A. nidulans]), AN4034.2, ANIA_04034 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=227321 Aspergillus nidulans]), AN6492.2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=227321 Aspergillus nidulans])</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=4g92 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g92 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4g92 RCSB], [http://www.ebi.ac.uk/pdbsum/4g92 PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The CCAAT box is a frequent element of eukaryotic promoters, and its specific recognition by the conserved heterotrimeric CCAAT-binding complex (CBC) constitutes a key step in promoter organization and regulation of transcription. Here, we report the crystal structures of the CBC from Aspergillus nidulans in the absence and in complex with double-stranded DNA at 1.8 A resolution. The histone-like subunits HapC and HapE induce nucleosome-like DNA bending by interacting with the sugar-phosphate backbone. Minor groove sensing and widening by subunit HapB tightly anchor the CBC to the CCAAT box, as shown by structural and biochemical data. Furthermore, crucial interactions of the DNA duplex with subunit HapB provide an explanation for the sequence specificity of the CBC. The herein-described mode of transcription factor binding answers the question of how histone proteins gained sequence specificity for the CCAAT box.
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{{STRUCTURE_4g92| PDB=4g92 | SCENE= }}
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DNA minor groove sensing and widening by the CCAAT-binding complex.,Huber EM, Scharf DH, Hortschansky P, Groll M, Brakhage AA Structure. 2012 Oct 10;20(10):1757-68. doi: 10.1016/j.str.2012.07.012. Epub 2012 , Aug 16. PMID:22902862<ref>PMID:22902862</ref>
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===CCAAT-binding complex from Aspergillus nidulans with 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_22902862}}
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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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[[4g92]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Aspergillus_nidulans_fgsc_a4 Aspergillus nidulans fgsc a4] and [http://en.wikipedia.org/wiki/Emericella_nidulans Emericella nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G92 OCA].
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</StructureSection>
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[[Category: Aspergillus nidulans fgsc a4]]
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[[Category: A. nidulans]]
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[[Category: Emericella nidulans]]
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[[Category: Aspergillus nidulans]]
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[[Category: Brakhage, A A.]]
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[[Category: Brakhage, A A]]
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[[Category: Groll, M.]]
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[[Category: Groll, M]]
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[[Category: Hortschansky, P.]]
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[[Category: Hortschansky, P]]
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[[Category: Huber, E M.]]
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[[Category: Huber, E M]]
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[[Category: Scharf, D H.]]
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[[Category: Scharf, D H]]
[[Category: Ccaat-binding complex]]
[[Category: Ccaat-binding complex]]
[[Category: Dna]]
[[Category: Dna]]

Revision as of 12:48, 4 January 2015

CCAAT-binding complex from Aspergillus nidulans with DNA

4g92, resolution 1.80Å

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