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X-ray crystal structure of the Escherichia coli RNA polymerase in complex with Rifampin
Biology and Chemistry Report
4KMU
  •   Structure Details   Hide

    Structure Keywords

    Keywords TRANSFERASE/ANTIBIOTIC
    Text transcription, DNA, RNA, TRANSFERASE-ANTIBIOTIC complex

    Polymeric Molecules

    Chain A,B,F,G
    Description DNA-directed RNA polymerase subunit alpha 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 36559.0 
    Source Method genetically manipulated  
    Entity Name RNAP subunit alpha, RNA polymerase subunit alpha, Transcriptase subunit alpha 
    Chain C,H
    Description DNA-directed RNA polymerase subunit beta 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 150822.0 
    Source Method genetically manipulated  
    Entity Name RNAP subunit beta, RNA polymerase subunit beta, Transcriptase subunit beta 
    Chain D,I
    Description DNA-directed RNA polymerase subunit beta' 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 155368.0 
    Source Method genetically manipulated  
    Entity Name RNAP subunit beta', RNA polymerase subunit beta', Transcriptase subunit beta' 
    Chain E,J
    Description DNA-directed RNA polymerase subunit omega 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 10249.6 
    Source Method genetically manipulated  
    Entity Name RNAP omega subunit, RNA polymerase omega subunit, Transcriptase subunit omega 
    Chain X,Y
    Description RNA polymerase sigma factor RpoD 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 70352.8 
    Source Method genetically manipulated  
    Entity Name Sigma-70 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    MG  MAGNESIUM ION  Mg   24.31  View 
    RFP  RIFAMPICIN  C43 H58 N4 O12   822.94  View 
    ZN  ZINC ION  Zn   65.41  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B,F,G RPOA_ECOLI P00574     
    C,H RPOB_ECOLI P00575     
    D,I RPOC_ECOLI P00577     
    E,J RPOZ_ECOLI P08374     
    X,Y RPOD_ECOLI P00579     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B F G  2.7.7.6      
    C H  2.7.7.6      
    D I  2.7.7.6      
    E J  2.7.7.6      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B,F,G
    GO ID   Ontology GO Term Definition
    3899   DNA Directed RNA Polymerase Activity  Catalysis of the Reaction: Nucleoside Triphosphate + Rna(n) = Diphosphate + Rna(n+1). Utilizes a DNA Template I.e. the Catalysis of DNA Template Directed Extension of the 3' End of an RNA Strand by One Nucleotide At a Time. Can Initiate a Chain 'de Novo'. 
    5515   Protein Binding  Interacting Selectively and Non Covalently with Any Protein or Protein Complex (a Complex of Two or More Proteins That May Include Other Nonprotein Molecules). 
    16740   Transferase Activity  Catalysis of the Transfer of a Group E.g. a Methyl Group Glycosyl Group Acyl Group Phosphorus Containing or Other Groups From One Compound (generally Regarded As the Donor) to Another Compound (generally Regarded As the Acceptor). Transferase Is the Systematic Name For Any Enzyme of EC Class 2. 
    16779   Nucleotidyltransferase Activity  Catalysis of the Transfer of a Nucleotidyl Group to a Reactant. 
    Chain C,H
    GO ID   Ontology GO Term Definition
    3899   DNA Directed RNA Polymerase Activity  Catalysis of the Reaction: Nucleoside Triphosphate + Rna(n) = Diphosphate + Rna(n+1). Utilizes a DNA Template I.e. the Catalysis of DNA Template Directed Extension of the 3' End of an RNA Strand by One Nucleotide At a Time. Can Initiate a Chain 'de Novo'. 
    5515   Protein Binding  Interacting Selectively and Non Covalently with Any Protein or Protein Complex (a Complex of Two or More Proteins That May Include Other Nonprotein Molecules). 
    16740   Transferase Activity  Catalysis of the Transfer of a Group E.g. a Methyl Group Glycosyl Group Acyl Group Phosphorus Containing or Other Groups From One Compound (generally Regarded As the Donor) to Another Compound (generally Regarded As the Acceptor). Transferase Is the Systematic Name For Any Enzyme of EC Class 2. 
    16779   Nucleotidyltransferase Activity  Catalysis of the Transfer of a Nucleotidyl Group to a Reactant. 
    Chain D,I
    GO ID   Ontology GO Term Definition
    3899   DNA Directed RNA Polymerase Activity  Catalysis of the Reaction: Nucleoside Triphosphate + Rna(n) = Diphosphate + Rna(n+1). Utilizes a DNA Template I.e. the Catalysis of DNA Template Directed Extension of the 3' End of an RNA Strand by One Nucleotide At a Time. Can Initiate a Chain 'de Novo'. 
    5515   Protein Binding  Interacting Selectively and Non Covalently with Any Protein or Protein Complex (a Complex of Two or More Proteins That May Include Other Nonprotein Molecules). 
    16740   Transferase Activity  Catalysis of the Transfer of a Group E.g. a Methyl Group Glycosyl Group Acyl Group Phosphorus Containing or Other Groups From One Compound (generally Regarded As the Donor) to Another Compound (generally Regarded As the Acceptor). Transferase Is the Systematic Name For Any Enzyme of EC Class 2. 
    16779   Nucleotidyltransferase Activity  Catalysis of the Transfer of a Nucleotidyl Group to a Reactant. 
    Chain E,J
    GO ID   Ontology GO Term Definition
    3899   DNA Directed RNA Polymerase Activity  Catalysis of the Reaction: Nucleoside Triphosphate + Rna(n) = Diphosphate + Rna(n+1). Utilizes a DNA Template I.e. the Catalysis of DNA Template Directed Extension of the 3' End of an RNA Strand by One Nucleotide At a Time. Can Initiate a Chain 'de Novo'. 
    5515   Protein Binding  Interacting Selectively and Non Covalently with Any Protein or Protein Complex (a Complex of Two or More Proteins That May Include Other Nonprotein Molecules). 
    16740   Transferase Activity  Catalysis of the Transfer of a Group E.g. a Methyl Group Glycosyl Group Acyl Group Phosphorus Containing or Other Groups From One Compound (generally Regarded As the Donor) to Another Compound (generally Regarded As the Acceptor). Transferase Is the Systematic Name For Any Enzyme of EC Class 2. 
    16779   Nucleotidyltransferase Activity  Catalysis of the Transfer of a Nucleotidyl Group to a Reactant. 
    Chain X,Y
    GO ID   Ontology GO Term Definition
    6351   Transcription DNA Templated  The Cellular Synthesis of RNA On a Template of Dna. 
    6355   Regulation of Transcription DNA Templated  Any Process That Modulates the Frequency Rate or Extent of Cellular DNA Templated Transcription. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    3677   DNA Binding  Any Molecular Function by Which a Gene Product Interacts Selectively and Non Covalently with DNA (deoxyribonucleic Acid). 
    5515   Protein Binding  Interacting Selectively and Non Covalently with Any Protein or Protein Complex (a Complex of Two or More Proteins That May Include Other Nonprotein Molecules). 
    16987   Sigma Factor Activity  A Sigma Factor Is the Promoter Specificity Subunit of Eubacterial Type Multisubunit RNA Polymerases Those Whose Core Subunit Composition Is Often Described As Alpha(2) Beta Beta Prime. (this Type of Multisubunit RNA Polymerase Complex Is Known to Be Found in Eubacteria and Plant Plastids). Although Sigma Does Not Bind DNA On Its Own When Combined with the Core to Form the Holoenzyme This Binds Specifically to Promoter Sequences with the Sigma Factor Making Sequence Specific Contacts with the Promoter Elements. the Sigma Subunit Is Released From the Elongating Form of the Polymerase and Is Thus Free to Act Catalytically For Multiple RNA Polymerase Core Enzymes. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain X,Y
    Scientific Name Escherichia coli  
    Gene rpod
    Host Scientific Name Escherichia coli  


    Chain E,J
    Scientific Name Escherichia coli  
    Gene rpoz
    Host Scientific Name Escherichia coli  


    Chain D,I
    Scientific Name Escherichia coli  
    Gene rpoc
    Host Scientific Name Escherichia coli  


    Chain C,H
    Scientific Name Escherichia coli  
    Gene rpob
    Host Scientific Name Escherichia coli  


    Chain A,B,F,G
    Scientific Name Escherichia coli  
    Gene rpoa
    Host Scientific Name Escherichia coli