2zbk: Difference between revisions

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[[Image:2zbk.jpg|left|200px]]
{{Seed}}
[[Image:2zbk.png|left|200px]]


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{{STRUCTURE_2zbk|  PDB=2zbk  |  SCENE=  }}  
{{STRUCTURE_2zbk|  PDB=2zbk  |  SCENE=  }}  


'''Crystal structure of an intact type II DNA topoisomerase: insights into DNA transfer mechanisms'''
===Crystal structure of an intact type II DNA topoisomerase: insights into DNA transfer mechanisms===




==Overview==
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DNA topoisomerases resolve DNA topological problems created during transcription, replication, and recombination. These ubiquitous enzymes are essential for cell viability and are highly potent targets for the development of antibacterial and antitumoral drugs. Type II enzymes catalyze the transfer of a DNA duplex through another one in an ATP-dependent mechanism. Because of its small size and sensitivity to antitumoral drugs, the archaeal DNA topoisomerase VI, a type II enzyme, is an excellent model for gaining further understanding of the organization and mechanism of these enzymes. We present the crystal structure of intact DNA topoisomerase VI bound to radicicol, an inhibitor of human topo II, and compare it to the conformation of the apo-protein as determined by small-angle X-ray scattering in solution. This structure, combined with a wealth of experimental data gathered on these enzymes, allows us to propose a structural model for the two-gate DNA transfer mechanism.
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{{ABSTRACT_PUBMED_18334211}}


==About this Structure==
==About this Structure==
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[[Category: Structural genomic]]
[[Category: Structural genomic]]
[[Category: Ysg]]
[[Category: Ysg]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 15:23:25 2008''

Revision as of 12:23, 28 July 2008

File:2zbk.png

Template:STRUCTURE 2zbk

Crystal structure of an intact type II DNA topoisomerase: insights into DNA transfer mechanisms

Template:ABSTRACT PUBMED 18334211

About this Structure

2ZBK is a Protein complex structure of sequences from Sulfolobus shibatae. Full crystallographic information is available from OCA.

Reference

Crystal Structure of an Intact Type II DNA Topoisomerase: Insights into DNA Transfer Mechanisms., Graille M, Cladiere L, Durand D, Lecointe F, Gadelle D, Quevillon-Cheruel S, Vachette P, Forterre P, van Tilbeurgh H, Structure. 2008 Mar;16(3):360-70. PMID:18334211

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