5h69: Difference between revisions

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New page: '''Unreleased structure''' The entry 5h69 is ON HOLD Authors: Description: Category: Unreleased Structures
 
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'''Unreleased structure'''


The entry 5h69 is ON HOLD
==Crystal structure of an asymmetric dimer of the Geobacillus stearothermophilus SMC hinge domain==
<StructureSection load='5h69' size='340' side='right'caption='[[5h69]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5h69]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacillus_stearothermophilus_10 Geobacillus stearothermophilus 10]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5H69 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5H69 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2004&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5h69 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5h69 OCA], [https://pdbe.org/5h69 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5h69 RCSB], [https://www.ebi.ac.uk/pdbsum/5h69 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5h69 ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The SMC-ScpAB complex plays a crucial role in chromosome organization and segregation in many bacteria. It is composed of a V-shaped SMC dimer and an ScpAB subcomplex that bridges the two Structural Maintenance of Chromosomes (SMC) head domains. Despite its functional significance, the mechanistic details of SMC-ScpAB remain obscure. Here we provide evidence that ATP-dependent head-head engagement induces a lever movement of the SMC neck region, which might help to separate juxtaposed coiled-coil arms. Binding of the ScpA N-terminal domain (NTD) to the SMC neck region is negatively regulated by the ScpB C-terminal domain. Mutations in the ScpA NTD compromise this regulation and profoundly affect the overall shape of the complex. The SMC hinge domain is structurally relaxed when free from coiled-coil juxtaposition. Taken together, we propose that the structural parts of SMC-ScpAB are subjected to the balance between constraint and relaxation, cooperating to modulate dynamic conformational changes of the whole complex.


Authors:  
Overall Shapes of the SMC-ScpAB Complex Are Determined by Balance between Constraint and Relaxation of Its Structural Parts.,Kamada K, Su'etsugu M, Takada H, Miyata M, Hirano T Structure. 2017 Apr 4;25(4):603-616.e4. doi: 10.1016/j.str.2017.02.008. Epub 2017, Mar 9. PMID:28286005<ref>PMID:28286005</ref>


Description:  
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
<div class="pdbe-citations 5h69" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Geobacillus stearothermophilus 10]]
[[Category: Large Structures]]
[[Category: Hirano T]]
[[Category: Kamada K]]
Retrieved from "https://proteopedia.org/5h69"