Loading
PDBj
MenuPDBj@FacebookPDBj@X(formerly Twitter)PDBj@BlueSkyPDBj@YouTubewwPDB FoundationwwPDBDonate
RCSB PDBPDBeBMRBAdv. SearchSearch help

1I7D

NONCOVALENT COMPLEX OF E.COLI DNA TOPOISOMERASE III WITH AN 8-BASE SINGLE-STRANDED DNA OLIGONUCLEOTIDE

Functional Information from GO Data
ChainGOidnamespacecontents
A0000287molecular_functionmagnesium ion binding
A0003677molecular_functionDNA binding
A0003916molecular_functionDNA topoisomerase activity
A0003917molecular_functionDNA topoisomerase type I (single strand cut, ATP-independent) activity
A0005515molecular_functionprotein binding
A0006261biological_processDNA-templated DNA replication
A0006265biological_processDNA topological change
A0006281biological_processDNA repair
A0006310biological_processDNA recombination
A0016853molecular_functionisomerase activity
A0043597cellular_componentcytoplasmic replication fork
A0046872molecular_functionmetal ion binding
A0051304biological_processchromosome separation
A0098847molecular_functionsequence-specific single stranded DNA binding
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CL A 800
ChainResidue
AARG60
ATRP61
AARG185
BDC701
BDC701

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE SO4 A 900
ChainResidue
AARG24
APHE29
AHOH1028

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues133
DetailsDomain: {"description":"Toprim","evidences":[{"source":"HAMAP-Rule","id":"MF_00953","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues448
DetailsDomain: {"description":"Topo IA-type catalytic","evidences":[{"source":"PROSITE-ProRule","id":"PRU01383","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues5
DetailsRegion: {"description":"Interaction with DNA"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsActive site: {"description":"O-(5'-phospho-DNA)-tyrosine intermediate","evidences":[{"source":"PROSITE-ProRule","id":"PRU01383","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"10574789","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00953","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues5
DetailsSite: {"description":"Interaction with DNA"}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1d6m
ChainResidueDetails
APHE328
ALYS8
AGLU7
AARG330

site_idMCSA1
Number of Residues6
DetailsM-CSA 64
ChainResidueDetails
BDT707hydrogen bond acceptor, hydrogen bond donor, metal ligand, proton acceptor, proton donor
BDT708electrostatic stabiliser, hydrogen bond donor

246704

PDB entries from 2025-12-24

PDB statisticsPDBj update infoContact PDBjnumon