Structure of active IspH shows a novel fold with a [3Fe-4S] cluster in the catalytic centre
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Text pseudo-C3-symmetry; unprecedent fold for FeS-cluster proteins, Iron, Iron-sulfur, Isoprene biosynthesis, Metal-binding, NADP, Oxidoreductase, PROTEIN BINDING

    Polymeric Molecules

    Chain A,B
    Description 4-hydroxy-3-methylbut-2-enyl diphosphate reductase 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 36223.3 
    Source Method genetically manipulated  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    F3S  FE3-S4 CLUSTER  Fe3 S4   295.80  View 
    PO4  PHOSPHATE ION  O4 P   94.97  View 
    POP  PYROPHOSPHATE 2-  H2 O7 P2   175.96  View 
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B ISPH_ECOLI P22565     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    8299   Isoprenoid Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Any Isoprenoid Compound Isoprene (2 Methylbuta 1 3 Diene) or Compounds Containing or Derived From Linked Isoprene (3 Methyl 2 Butenylene) Residues. 
    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. 
    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. 
    46872   Metal Ion Binding  Interacting Selectively and Non Covalently with Any Metal Ion. 
    51536   Iron Sulfur Cluster Binding  Interacting Selectively and Non Covalently with an Iron Sulfur Cluster a Combination of Iron and Sulfur Atoms. 
    51538   3 Iron 4 Sulfur Cluster Binding  Interacting Selectively and Non Covalently with a 3 Iron 4 Sulfur (3fe 4s) Cluster; This Cluster Consists of Three Iron Atoms with the Inorganic Sulfur Atoms Found Between the Irons and Acting As Bridging Ligands. It Is Essentially a 4fe 4s Cluster with One Iron Missing. 

  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Scientific Name Escherichia coli  
    Strain K-12
    Details Cytosolic Protein
    Gene b0029, isph, jw0027, lytb, yaae
    Host Scientific Name Escherichia coli  
    Host Strain Bl21de3
    Host Vector Type Plasmid
    Host Plasmid Name pQE30