1d3y

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[[Image:1d3y.gif|left|200px]]
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{{Seed}}
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[[Image:1d3y.png|left|200px]]
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{{STRUCTURE_1d3y| PDB=1d3y | SCENE= }}
{{STRUCTURE_1d3y| PDB=1d3y | SCENE= }}
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'''STRUCTURE OF THE DNA TOPOISOMERASE VI A SUBUNIT'''
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===STRUCTURE OF THE DNA TOPOISOMERASE VI A SUBUNIT===
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==Overview==
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In all organisms, type II DNA topoisomerases are essential for untangling chromosomal DNA. We have determined the structure of the DNA-binding core of the Methanococcus jannaschii DNA topoisomerase VI A subunit at 2.0 A resolution. The overall structure of this subunit is unique, demonstrating that archaeal type II enzymes are distinct from other type II topoisomerases. However, the core structure contains a pair of domains that are also found in type IA and classic type II topoisomerases. Together, these regions may form the basis of a DNA cleavage mechanism shared among these enzymes. The core A subunit is a dimer that contains a deep groove that spans both protomers. The dimer architecture suggests that DNA is bound in the groove, across the A subunit interface, and that the two monomers separate during DNA transport. The A subunit of topoisomerase VI is homologous to the meiotic recombination factor, Spo11, and this structure can serve as a template for probing Spo11 function in eukaryotes.
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(as it appears on PubMed at http://www.pubmed.gov), where 10545127 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10545127}}
==About this Structure==
==About this Structure==
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[[Category: Spo11 homolog]]
[[Category: Spo11 homolog]]
[[Category: Topoisomerase vi]]
[[Category: Topoisomerase vi]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:25:28 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 22:21:30 2008''

Revision as of 19:21, 30 June 2008

Image:1d3y.png

Template:STRUCTURE 1d3y

STRUCTURE OF THE DNA TOPOISOMERASE VI A SUBUNIT

Template:ABSTRACT PUBMED 10545127

About this Structure

1D3Y is a Single protein structure of sequence from Methanocaldococcus jannaschii. Full crystallographic information is available from OCA.

Reference

Structure and function of an archaeal topoisomerase VI subunit with homology to the meiotic recombination factor Spo11., Nichols MD, DeAngelis K, Keck JL, Berger JM, EMBO J. 1999 Nov 1;18(21):6177-88. PMID:10545127

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