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Detailed structural insight into the DNA cleavage complex of type IIA topoisomerases (cleaved form)
Biology and Chemistry Report
3KSA
  •   Structure Details   Hide

    Structure Keywords

    Keywords ISOMERASE/DNA
    Text Topoisomerase, protein-DNA cleavage complex, Streptococcus pneumoniae, DNA-binding, nucleotide-binding, quinolone, Cleaved form, ISOMERASE-DNA COMPLEX

    Polymeric Molecules

    Chain A,B
    Description DNA topoisomerase 4 subunit A 
    Fragment residues 1-488 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 56456.1 
    Source Method genetically manipulated  
    Entity Name ParC55, Topoisomerase IV subunit A 
    Chain C,D
    Description DNA topoisomerase 4 subunit B 
    Fragment residues 404-647 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 30415.9 
    Source Method genetically manipulated  
    Entity Name ParE30, Topoisomerase IV subunit B 
    Chain E
    Description 5'-D(*AP*CP*CP*AP*AP*GP*GP*T*CP*AP*TP*GP*AP*AP*T)-3' 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polydeoxyribonucleotide 
    Formula Weight 4602.1 
    Source Method synthetic  
    Chain F
    Description 5'-D(P*AP*GP*TP*CP*AP*TP*TP*CP*AP*TP*GP*AP*CP*CP*TP*TP*GP*GP*T)-3' 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polydeoxyribonucleotide 
    Formula Weight 5810.8 
    Source Method synthetic  
    Chain G
    Description 5'-D(*CP*TP*GP*TP*TP*TP*TP*A*CP*GP*TP*GP*CP*AP*T)-3' 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polydeoxyribonucleotide 
    Formula Weight 4566.0 
    Source Method synthetic  
    Chain H
    Description 5'-D(P*GP*AP*CP*TP*AP*TP*GP*CP*AP*CP*GP*TP*AP*AP*AP*AP*CP*AP*G)-3' 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polydeoxyribonucleotide 
    Formula Weight 5846.9 
    Source Method synthetic  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    MG  MAGNESIUM ION  Mg   24.31  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B PARC_STRPN P72525     
    C,D PARE_STRPN P77956     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B  5.99.1.3      
    C D  5.99.1.3      
     
  •   Gene Details   Hide

    Genetic Source

    Chain C,D
    Scientific Name Streptococcus pneumoniae  
    Strain 7785
    Gene pare
    Host Scientific Name Escherichia coli  
    Host Vector Type Plasmid
    Host Plasmid Name pET19B


    Chain A,B
    Scientific Name Streptococcus pneumoniae  
    Strain 7785
    Gene parc
    Host Scientific Name Escherichia coli  
    Host Vector Type Plasmid
    Host Plasmid Name pET29A