2ius: Difference between revisions

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|ACTIVITY=  
|ACTIVITY=  
|GENE=  
|GENE=  
|DOMAIN=
|RELATEDENTRY=
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ius FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ius OCA], [http://www.ebi.ac.uk/pdbsum/2ius PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2ius RCSB]</span>
}}
}}


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[[Category: transmembrane]]
[[Category: transmembrane]]


''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 17:33:43 2008''
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:48:54 2008''

Revision as of 00:48, 31 March 2008

File:2ius.jpg


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2ius, resolution 2.7Å
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



E. COLI FTSK MOTOR DOMAIN


Overview

FtsK is a DNA translocase that coordinates chromosome segregation and cell division in bacteria. In addition to its role as activator of XerCD site-specific recombination, FtsK can translocate double-stranded DNA (dsDNA) rapidly and directionally and reverse direction. We present crystal structures of the FtsK motor domain monomer, showing that it has a RecA-like core, the FtsK hexamer, and also showing that it is a ring with a large central annulus and a dodecamer consisting of two hexamers, head to head. Electron microscopy (EM) demonstrates the DNA-dependent existence of hexamers in solution and shows that duplex DNA passes through the middle of each ring. Comparison of FtsK monomer structures from two different crystal forms highlights a conformational change that we propose is the structural basis for a rotary inchworm mechanism of DNA translocation.

About this Structure

2IUS is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Double-stranded DNA translocation: structure and mechanism of hexameric FtsK., Massey TH, Mercogliano CP, Yates J, Sherratt DJ, Lowe J, Mol Cell. 2006 Aug;23(4):457-69. PMID:16916635

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