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2hcb

From Proteopedia

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[[Image:2hcb.png|left|200px]]
 
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==Structure of AMPPCP-bound DnaA from Aquifex aeolicus==
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The line below this paragraph, containing "STRUCTURE_2hcb", creates the "Structure Box" on the page.
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<StructureSection load='2hcb' size='340' side='right'caption='[[2hcb]], [[Resolution|resolution]] 3.51&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2hcb]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Aquifex_aeolicus Aquifex aeolicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HCB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HCB FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.51&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACP:PHOSPHOMETHYLPHOSPHONIC+ACID+ADENYLATE+ESTER'>ACP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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{{STRUCTURE_2hcb| PDB=2hcb | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2hcb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hcb OCA], [https://pdbe.org/2hcb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hcb RCSB], [https://www.ebi.ac.uk/pdbsum/2hcb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hcb ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/DNAA_AQUAE DNAA_AQUAE] Plays an important role in the initiation and regulation of chromosomal replication. Binds to the origin of replication; it binds specifically double-stranded DNA at a 9 bp consensus (dnaA box): 5'-TTATC[CA]A[CA]A-3'. DnaA binds to ATP and to acidic phospholipids (By similarity).
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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/hc/2hcb_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/main_output.php?pdb_ID=2hcb 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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In bacteria, the initiation of replication is controlled by DnaA, a member of the ATPases associated with various cellular activities (AAA+) protein superfamily. ATP binding allows DnaA to transition from a monomeric state into a large oligomeric complex that remodels replication origins, triggers duplex melting and facilitates replisome assembly. The crystal structure of AMP-PCP-bound DnaA reveals a right-handed superhelix defined by specific protein-ATP interactions. The observed quaternary structure of DnaA, along with topology footprint assays, indicates that a right-handed DNA wrap is formed around the initiation nucleoprotein complex. This model clarifies how DnaA engages and unwinds bacterial origins and suggests that additional, regulatory AAA+ proteins engage DnaA at filament ends. Eukaryotic and archaeal initiators also have the structural elements that promote open-helix formation, indicating that a spiral, open-ring AAA+ assembly forms the core element of initiators in all domains of life.
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===Structure of AMPPCP-bound DnaA from Aquifex aeolicus===
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Structural basis for ATP-dependent DnaA assembly and replication-origin remodeling.,Erzberger JP, Mott ML, Berger JM Nat Struct Mol Biol. 2006 Aug;13(8):676-83. Epub 2006 Jul 9. PMID:16829961<ref>PMID:16829961</ref>
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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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<div class="pdbe-citations 2hcb" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_16829961}}, adds the Publication Abstract to the page
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*[[DnaA|DnaA]]
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(as it appears on PubMed at http://www.pubmed.gov), where 16829961 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_16829961}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[2hcb]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Aquifex_aeolicus Aquifex aeolicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HCB OCA].
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==Reference==
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<ref group="xtra">PMID:016829961</ref><references group="xtra"/>
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[[Category: Aquifex aeolicus]]
[[Category: Aquifex aeolicus]]
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[[Category: Berger, J M.]]
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[[Category: Large Structures]]
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[[Category: Erzberger, J P.]]
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[[Category: Berger JM]]
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[[Category: Mott, M L.]]
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[[Category: Erzberger JP]]
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[[Category: Aaa+ atpase]]
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[[Category: Mott ML]]
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[[Category: Helix-turn-helix]]
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[[Category: Replication]]
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Current revision

Structure of AMPPCP-bound DnaA from Aquifex aeolicus

PDB ID 2hcb

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