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Breakage-reunion domain of S.pneumoniae topo IV: crystal structure of a gram-positive quinolone target
Biology and Chemistry Report
2NOV
  •   Structure Details   Hide

    Structure Keywords

    Keywords Isomerase
    Text protein, ParC, topo IV, gram-positive bacteria, quinolone target, DNA binding, DNA cleavage, Isomerase

    Polymeric Molecules

    Chain A,B,C,D
    Description DNA topoisomerase 4 subunit A 
    Fragment 55-kDa N-terminal fragment 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 56456.1 
    Source Method genetically manipulated  
    Entity Name Topoisomerase IV subunit A 

     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B,C,D Q3HYJ3_STREE Q3HYJ3     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc Catalytic Site(s)
    A B C D  5.99.1        
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B,C,D
    GO ID   Ontology GO Term Definition
    6259   DNA Metabolic Process  Any Cellular Metabolic Process Involving Deoxyribonucleic Acid. This Is One of the Two Main Types of Nucleic Acid Consisting of a Long Unbranched Macromolecule Formed From One or More Commonly Two Strands of Linked Deoxyribonucleotides. 
    6265   DNA Topological Change  The Process in Which a Transformation Is Induced in the Topological Structure of a Double Stranded DNA Helix Resulting in a Change in Linking Number. 
    3677   DNA Binding  Any Molecular Function by Which a Gene Product Interacts Selectively and Non Covalently with DNA (deoxyribonucleic Acid). 
    3918   DNA topoisomerase type II (ATP-hydrolyzing) activity  Catalysis of a DNA Topological Transformation by Transiently Cleaving a Pair of Complementary DNA Strands to Form a Gate Through Which a Second Double Stranded DNA Segment Is Passed After Which the Severed Strands in the First DNA Segment Are Rejoined; Product Release Is Coupled to ATP Binding and Hydrolysis; Changes the Linking Number in Multiples of 2. 
    5524   ATP Binding  Interacting Selectively and Non Covalently with ATP Adenosine 5' Triphosphate a Universally Important Coenzyme and Enzyme Regulator. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B,C,D
    Scientific Name Streptococcus pneumoniae  
    Genus Streptococcus
    Strain 7785
    Gene parc
    Host Scientific Name Escherichia coli  
    Host Genus Escherichia
    Host Strain B834(de3)plyss
    Host Vector Type Plasmid
    Host Plasmid Name pET29a