ISDA

Deposition Date 2008-12-30

Release Date 2009-02-24

Last Version Date 2023-11-01

Entry Detail

PDB ID:

3FOE

Keywords:

ISOMERASE/DNA

Title:

Structural insight into the quinolone-DNA cleavage complex of type IIA topoisomerases

Biological Source:

Source Organism:

Streptococcus pneumoniae (Taxon ID: 1313)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

4.00 Å

R-Value Free:

0.31

R-Value Work:

0.25

R-Value Observed:

0.26

Space Group:

P 32

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:DNA topoisomerase 4 subunit A
Gene (Uniprot):parC
Chain IDs:A, B
Chain Length:496
Number of Molecules:2
Biological Source:Streptococcus pneumoniae

UniProt ID:P72525 Pfam ID:PF00521

Protein Blast

Polymer Type:polypeptide(L)
Molecule:DNA topoisomerase 4 subunit B
Gene (Uniprot):parE
Chain IDs:C, D
Chain Length:268
Number of Molecules:2
Biological Source:Streptococcus pneumoniae

UniProt ID:Q59961 Pfam ID:PF01751, PF00986

Ligand Molecules

NFX

Primary Citation

Structural insight into the quinolone-DNA cleavage complex of type IIA topoisomerases

Laponogov, I, Sohi, M.K, Veselkov, D.A, Pan, X.-S, Sawhney, R, Thompson, A.W, McAuley, K.E, Fisher, L.M, Sanderson, M.R.Show

Nat.Struct.Mol.Biol. 16 667 669 (2009)

PMID: 19448616 DOI: 10.1038/nsmb.1604

Abstact

Type II topoisomerases alter DNA topology by forming a covalent DNA-cleavage complex that allows DNA transport through a double-stranded DNA break. We present the structures of cleavage complexes formed by the Streptococcus pneumoniae ParC breakage-reunion and ParE TOPRIM domains of topoisomerase IV stabilized by moxifloxacin and clinafloxacin, two antipneumococcal fluoroquinolones. These structures reveal two drug molecules intercalated at the highly bent DNA gate and help explain antibacterial quinolone action and resistance.

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Primary Citation of related structures