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3FOF

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

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
C0003677molecular_functionDNA binding
C0003918molecular_functionDNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity
C0005524molecular_functionATP binding
C0006265biological_processDNA topological change
D0003677molecular_functionDNA binding
D0003918molecular_functionDNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity
D0005524molecular_functionATP binding
D0006265biological_processDNA topological change
Functional Information from PDB Data
site_id1
Number of Residues
Details
ChainResidue

site_idAC1
Number of Residues8
DetailsBINDING SITE FOR RESIDUE MFX F 0
ChainResidue
BGLY77
BASP78
BSER79
BSER80
FDA1
GDT15
HDT4
HDA5

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MFX H 0
ChainResidue
ASER79
ASER80
FDC4
FDA5
HDG1
AGLY77

Functional Information from PROSITE/UniProt
site_idPS00177
Number of Residues9
DetailsTOPOISOMERASE_II DNA topoisomerase II signature. LVEGDSAGG
ChainResidueDetails
CLEU431-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 Residues6
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00939","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"20596531","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues7
DetailsSite: {"description":"Interaction with DNA","evidences":[{"source":"HAMAP-Rule","id":"MF_00939","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ab4
ChainResidueDetails
ATYR118
AARG28
AHIS74

site_idCSA2
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ab4
ChainResidueDetails
BTYR118
BARG28
BHIS74

239149

PDB entries from 2025-07-23

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