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Structure of ICDH-1 from M.tuberculosis complexed with NADPH & Mn2+
Biology and Chemistry Report
4HCX
  •   Structure Details   Hide

    Structure Keywords

    Keywords OXIDOREDUCTASE
    Text ICDH-1, Rossmann Fold, Dehydrogenase, NADP Binding, OXIDOREDUCTASE

    Polymeric Molecules

    Chain A,B
    Description Isocitrate dehydrogenase [NADP] 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 45566.1 
    Source Method genetically manipulated  
    Entity Name IDH, IDP, NADP(+)-specific ICDH, Oxalosuccinate decarboxylase 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    CL  CHLORIDE ION  Cl   35.45  View 
    MN  MANGANESE (II) ION  Mn   54.94  View 
    NDP  NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE  C21 H30 N7 O17 P3   745.42  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B IDH_MYCTU L0TFB7     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B  1.1.1.42      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    6097   Glyoxylate Cycle  A Modification of the Tca Cycle Occurring in Some Plants and Microorganisms in Which Isocitrate Is Cleaved to Glyoxylate and Succinate. Glyoxylate Can Then React with Acetyl Coa to Form Malate. 
    6099   Tricarboxylic Acid Cycle  A Nearly Universal Metabolic Pathway in Which the Acetyl Group of Acetyl Coenzyme a Is Effectively Oxidized to Two Co2 and Four Pairs of Electrons Are Transferred to Coenzymes. the Acetyl Group Combines with Oxaloacetate to Form Citrate Which Undergoes Successive Transformations to Isocitrate 2 Oxoglutarate Succinyl Coa Succinate Fumarate Malate and Oxaloacetate Again Thus Completing the Cycle. in Eukaryotes the Tricarboxylic Acid Is Confined to the Mitochondria. See Also Glyoxylate Cycle. 
    6102   Isocitrate Metabolic Process  The Chemical Reactions and Pathways Involving Isocitrate the Anion of Isocitric Acid 1 Hydroxy 1 2 3 Propanetricarboxylic Acid. Isocitrate Is an Important Intermediate in the Tca Cycle and the Glycoxylate Cycle. 
    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. 
    5886   Plasma Membrane  The Membrane Surrounding a Cell That Separates the Cell From Its External Environment. It Consists of a Phospholipid Bilayer and Associated Proteins. 
    287   Magnesium Ion Binding  Interacting Selectively and Non Covalently with Magnesium (mg) Ions. 
    4450   Isocitrate Dehydrogenase (nadp+) Activity  Catalysis of the Reaction: Isocitrate + Nadp+ = 2 Oxoglutarate + Co2 + Nadph + H+. 
    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). 
    8270   Zinc Ion Binding  Interacting Selectively and Non Covalently with Zinc (zn) Ions. 
    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. 
    16616   Oxidoreductase Activity Acting On the Ch Oh Group of Donors NAD or Nadp As Acceptor  Catalysis of an Oxidation Reduction (redox) Reaction in Which a Ch Oh Group Acts As a Hydrogen or Electron Donor and Reduces Nad+ or Nadp. 
    46872   Metal Ion Binding  Interacting Selectively and Non Covalently with Any Metal Ion. 
    51287   NAD Binding  Interacting Selectively and Non Covalently with Nicotinamide Adenine Dinucleotide a Coenzyme Involved in Many Redox and Biosynthetic Reactions; Binding May Be to Either the Oxidized Form Nad+ or the Reduced Form Nadh. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Scientific Name Mycobacterium tuberculosis  
    Gene icd, rv3339c, mt3442, mtv016.39c
    Host Scientific Name Escherichia coli