3u61

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[[Image:3u61.jpg|left|200px]]
 
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==Structure of T4 Bacteriophage Clamp Loader Bound To Closed Clamp, DNA and ATP Analog and ADP==
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The line below this paragraph, containing "STRUCTURE_3u61", creates the "Structure Box" on the page.
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<StructureSection load='3u61' size='340' side='right'caption='[[3u61]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3u61]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_virus_T4 Escherichia virus T4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3U61 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3U61 FirstGlance]. <br>
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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]] 3.2&#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=08T:[[[(2R,3S,4R,5R)-5-(6-AMINOPURIN-9-YL)-3,4-BIS(OXIDANYL)OXOLAN-2-YL]METHOXY-OXIDANYL-PHOSPHORYL]OXY-OXIDANYL-PHOSPHORYL]OXY-TRIS(FLUORANYL)BERYLLIUM'>08T</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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{{STRUCTURE_3u61| PDB=3u61 | 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=3u61 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3u61 OCA], [https://pdbe.org/3u61 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3u61 RCSB], [https://www.ebi.ac.uk/pdbsum/3u61 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3u61 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/LOADL_BPT4 LOADL_BPT4] Forms the sliding-clamp-loader together with the small subunit (PubMed:10585481). Functions as an ATPase enzyme (PubMed:16800623, PubMed:18676368). The clamp loader holds the clamp in an open conformation and places it onto the DNA (PubMed:18676368, PubMed:22194570). 4 ATP molecules must bind to the sliding-clamp-loader before the latter can open the sliding clamp (PubMed:18676368). ATP hydrolysis triggers the detachment of the sliding clamp from the sliding-clamp-loader, freeing the sliding clamp to track along DNA (PubMed:18676368, PubMed:22194570).[HAMAP-Rule:MF_04162]<ref>PMID:10585481</ref> <ref>PMID:16800623</ref> <ref>PMID:18676368</ref> <ref>PMID:22194570</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Processive chromosomal replication relies on sliding DNA clamps, which are loaded onto DNA by pentameric clamp loader complexes belonging to the AAA+ family of adenosine triphosphatases (ATPases). We present structures for the ATP-bound state of the clamp loader complex from bacteriophage T4, bound to an open clamp and primer-template DNA. The clamp loader traps a spiral conformation of the open clamp so that both the loader and the clamp match the helical symmetry of DNA. One structure reveals that ATP has been hydrolyzed in one subunit and suggests that clamp closure and ejection of the loader involves disruption of the ATP-dependent match in symmetry. The structures explain how synergy among the loader, the clamp, and DNA can trigger ATP hydrolysis and release of the closed clamp on DNA.
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===Structure of T4 Bacteriophage Clamp Loader Bound To Closed Clamp, DNA and ATP Analog and ADP===
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How a DNA polymerase clamp loader opens a sliding clamp.,Kelch BA, Makino DL, O'Donnell M, Kuriyan J Science. 2011 Dec 23;334(6063):1675-80. PMID:22194570<ref>PMID:22194570</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 3u61" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 22194570 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_22194570}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Escherichia virus T4]]
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[[3u61]] is a 10 chain structure with sequence from [http://en.wikipedia.org/wiki/Enterobacteria_phage_t4 Enterobacteria phage t4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3U61 OCA].
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[[Category: Large Structures]]
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[[Category: Kelch BA]]
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==Reference==
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[[Category: Kuriyan J]]
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<ref group="xtra">PMID:022194570</ref><references group="xtra"/>
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[[Category: Makino DL]]
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[[Category: Enterobacteria phage t4]]
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[[Category: O'Donnell M]]
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[[Category: Donnell, M O.]]
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[[Category: Kelch, B A.]]
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[[Category: Kuriyan, J.]]
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[[Category: Makino, D L.]]
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[[Category: Aaa+]]
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[[Category: Atp hydrolase]]
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[[Category: Clamp loader]]
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[[Category: Dna binding protein-dna complex]]
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[[Category: Primer-template dna]]
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[[Category: Sliding clamp]]
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Current revision

Structure of T4 Bacteriophage Clamp Loader Bound To Closed Clamp, DNA and ATP Analog and ADP

PDB ID 3u61

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