1BGW image
Deposition Date 1996-02-20
Release Date 1996-07-11
Last Version Date 2024-02-07
Entry Detail
PDB ID:
1BGW
Keywords:
DNA BINDING PROTEIN
Title:
TOPOISOMERASE RESIDUES 410-1202,
Biological Source:
Source Organism:
Saccharomyces cerevisiae (Taxon ID: 4932)
Host Organism:
Saccharomyces cerevisiae
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.70 Å
R-Value Free:
0.27
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 43 21 2
1BGW validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:TOPOISOMERASE
Gene (Uniprot):TOP2
Chain IDs:A
Chain Length:793
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P06786 Pfam ID:PF01751, PF16898, PF00521 EC:5.6.2.2
Primary Citation
Structure and mechanism of DNA topoisomerase II.
Nature 379 225 232 (1996)
PMID: 8538787 DOI: 10.1038/379225a0

Abstact

The crystal structure of a large fragment of yeast type II DNA topoisomerase reveals a heart-shaped dimeric protein with a large central hole. It provides a molecular model of the enzyme as an ATP-modulated clamp with two sets of jaws at opposite ends, connected by multiple joints. An enzyme with bound DNA can admit a second DNA duplex through one set of jaws, transport it through the cleaved first duplex, and expel it through the other set of jaws.

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Protein

Chemical

Disease

Primary Citation of related structures
1BGW