2bke

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[[Image:2bke.gif|left|200px]]<br /><applet load="2bke" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:2bke.gif|left|200px]]
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caption="2bke, resolution 3.200&Aring;" />
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'''CONFORMATIONAL FLEXIBILITY REVEALED BY THE CRYSTAL STRUCTURE OF A CRENARCHAEAL RADA'''<br />
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{{Structure
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|PDB= 2bke |SIZE=350|CAPTION= <scene name='initialview01'>2bke</scene>, resolution 3.200&Aring;
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|SITE= <scene name='pdbsite=AC1:Cl+Binding+Site+For+Chain+A'>AC1</scene>
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|LIGAND= <scene name='pdbligand=CL:CHLORIDE ION'>CL</scene>
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|ACTIVITY=
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|GENE=
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}}
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'''CONFORMATIONAL FLEXIBILITY REVEALED BY THE CRYSTAL STRUCTURE OF A CRENARCHAEAL RADA'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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2BKE is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Sulfolobus_solfataricus Sulfolobus solfataricus] with <scene name='pdbligand=CL:'>CL</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Known structural/functional Site: <scene name='pdbsite=AC1:Cl+Binding+Site+For+Chain+A'>AC1</scene>. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BKE OCA].
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2BKE is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sulfolobus_solfataricus Sulfolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BKE OCA].
==Reference==
==Reference==
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Conformational flexibility revealed by the crystal structure of a crenarchaeal RadA., Ariza A, Richard DJ, White MF, Bond CS, Nucleic Acids Res. 2005 Mar 8;33(5):1465-73. Print 2005. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=15755748 15755748]
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Conformational flexibility revealed by the crystal structure of a crenarchaeal RadA., Ariza A, Richard DJ, White MF, Bond CS, Nucleic Acids Res. 2005 Mar 8;33(5):1465-73. Print 2005. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15755748 15755748]
[[Category: Single protein]]
[[Category: Single protein]]
[[Category: Sulfolobus solfataricus]]
[[Category: Sulfolobus solfataricus]]
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[[Category: sulfolobus solfataricus]]
[[Category: sulfolobus solfataricus]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:38:43 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 16:03:07 2008''

Revision as of 14:03, 20 March 2008


PDB ID 2bke

Drag the structure with the mouse to rotate
, resolution 3.200Å
Sites:
Ligands:
Coordinates: save as pdb, mmCIF, xml



CONFORMATIONAL FLEXIBILITY REVEALED BY THE CRYSTAL STRUCTURE OF A CRENARCHAEAL RADA


Overview

Homologous recombinational repair is an essential mechanism for repair of double-strand breaks in DNA. Recombinases of the RecA-fold family play a crucial role in this process, forming filaments that utilize ATP to mediate their interactions with single- and double-stranded DNA. The recombinase molecules present in the archaea (RadA) and eukaryota (Rad51) are more closely related to each other than to their bacterial counterpart (RecA) and, as a result, RadA makes a suitable model for the eukaryotic system. The crystal structure of Sulfolobus solfataricus RadA has been solved to a resolution of 3.2 A in the absence of nucleotide analogues or DNA, revealing a narrow filamentous assembly with three molecules per helical turn. As observed in other RecA-family recombinases, each RadA molecule in the filament is linked to its neighbour via interactions of a short beta-strand with the neighbouring ATPase domain. However, despite apparent flexibility between domains, comparison with other structures indicates conservation of a number of key interactions that introduce rigidity to the system, allowing allosteric control of the filament by interaction with ATP. Additional analysis reveals that the interaction specificity of the five human Rad51 paralogues can be predicted using a simple model based on the RadA structure.

About this Structure

2BKE is a Single protein structure of sequence from Sulfolobus solfataricus. Full crystallographic information is available from OCA.

Reference

Conformational flexibility revealed by the crystal structure of a crenarchaeal RadA., Ariza A, Richard DJ, White MF, Bond CS, Nucleic Acids Res. 2005 Mar 8;33(5):1465-73. Print 2005. PMID:15755748

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