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Nucleant-assisted 2.0 A resolution structure of the Streptococcus pneumoniae topoisomerase IV-V18mer DNA complex with the novel fluoroquinolone Delafloxacin

Functional Information from GO Data
ChainGOidnamespacecontents
A0003677molecular_functionDNA binding
A0003918molecular_functionDNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity
A0005524molecular_functionATP binding
A0005694cellular_componentchromosome
A0006259biological_processDNA metabolic process
A0006265biological_processDNA topological change
B0003677molecular_functionDNA binding
B0003918molecular_functionDNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity
B0005524molecular_functionATP binding
B0005694cellular_componentchromosome
B0006259biological_processDNA metabolic process
B0006265biological_processDNA topological change
Functional Information from PROSITE/UniProt
site_idPS00177
Number of Residues9
DetailsTOPOISOMERASE_II DNA topoisomerase II signature. LVEGDSAGG
ChainResidueDetails
ALEU431-GLY439

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"O-(5'-phospho-DNA)-tyrosine intermediate","evidences":[{"source":"HAMAP-Rule","id":"MF_00937","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"20596531","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues10
DetailsSite: {"description":"Interaction with DNA"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsSite: {"description":"Transition state stabilizer"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues228
DetailsDomain: {"description":"Toprim","evidences":[{"source":"HAMAP-Rule","id":"MF_00939","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues6
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00939","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"20596531","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues8
DetailsSite: {"description":"Interaction with DNA","evidences":[{"source":"HAMAP-Rule","id":"MF_00939","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

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PDB entries from 2025-11-05

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