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Crystal Structure of 7-cyano-7-deazaguanine Reductase, QueF from Vibrio cholerae O1 biovar El Tor complexed with cytosine
Biology and Chemistry Report
4IQI
  •   Structure Details   Hide

    Structure Keywords

    Keywords OXIDOREDUCTASE
    Text Structural Genomics, NIAID, National Institute of Allergy and Infectious Diseases, Center for Structural Genomics of Infectious Diseases, CSGID, tunneling fold, Rossman fold, OXIDOREDUCTASE

    Polymeric Molecules

    Chain A,B
    Description NADPH-dependent 7-cyano-7-deazaguanine reductase 
    Nonstandard Linkage no 
    Nonstandard Monomers yes 
    Polymer Type polypeptide(L) 
    Formula Weight 33315.6 
    Source Method genetically manipulated  
    Entity Name 7-cyano-7-carbaguanine reductase, NADPH-dependent nitrile oxidoreductase, PreQ(0) reductase 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    CL  CHLORIDE ION  Cl   35.45  View 
    CYT  6-AMINOPYRIMIDIN-2(1H)-ONE  C4 H5 N3 O   111.10  View 
    SO4  SULFATE ION  O4 S   96.06  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B QUEF_VIBCH Q9KTK0     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B  1.7.1.13      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    8150   Biological_process  Any Process Specifically Pertinent to the Functioning of Integrated Living Units: Cells Tissues Organs and Organisms. a Process Is a Collection of Molecular Events with a Defined Beginning and End. 
    8616   Queuosine Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Queuosines Any of a Series of Nucleosides Found in TRNA and Having an Additional Pentenyl Ring Added Via an Nh Group to the Methyl Group of 7 Methylguanosine. the Pentenyl Ring May Carry Other Substituents. 
    55114   Oxidation Reduction Process  A Metabolic Process That Results in the Removal or Addition of One or More Electrons to or From a Substance with or Without the Concomitant Removal or Addition of a Proton or Protons. 
    5575   Cellular_component  The Part of a Cell or Its Extracellular Environment in Which a Gene Product Is Located. a Gene Product May Be Located in One or More Parts of a Cell and Its Location May Be As Specific As a Particular Macromolecular Complex That Is a Stable Persistent Association of Macromolecules That Function Together. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    3674   Molecular_function  Elemental Activities Such As Catalysis or Binding Describing the Actions of a Gene Product At the Molecular Level. a Given Gene Product May Exhibit One or More Molecular Functions. 
    16491   Oxidoreductase Activity  Catalysis of an Oxidation Reduction (redox) Reaction a Reversible Chemical Reaction in Which the Oxidation State of an Atom or Atoms Within a Molecule Is Altered. One Substrate Acts As a Hydrogen or Electron Donor and Becomes Oxidized While the Other Acts As Hydrogen or Electron Acceptor and Becomes Reduced. 
    33739   Preq1 Synthase Activity  Catalysis of the Reaction: 7 Aminomethyl 7 Deazaguanine + 2 Nadp(+) = 7 Cyano 7 Deazaguanine + 3 H(+) + 2 Nadph. 
    46857   Oxidoreductase Activity Acting On Other Nitrogenous Compounds As Donors with NAD or Nadp As Acceptor  Catalysis of an Oxidation Reduction (redox) Reaction in Which a Nitrogenous Group Excluding Nh and Nh2 Groups Acts As a Hydrogen or Electron Donor and Reduces NAD or Nadp. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Scientific Name Vibrio cholerae o1 biovar el tor  
    Strain N16961
    Gene quef, vcm66_0859
    Host Scientific Name Escherichia coli  
    Host Strain Bl21 Magic
    Host Vector Type Plasmid
    Host Plasmid Name pMCSG7