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CRYSTAL STRUCTURES OF ESCHERICHIA COLI DIHYDROFOLATE REDUCTASE. THE NADP+ HOLOENZYME AND THE FOLATE(DOT)NADP+ TERNARY COMPLEX. SUBSTRATE BINDING AND A MODEL FOR THE TRANSITION STATE
Biology and Chemistry Report
7DFR
  •   Structure Details   Hide

    Structure Keywords

    Keywords OXIDO-REDUCTASE
    Text OXIDO-REDUCTASE

    Polymeric Molecules

    Chain A
    Description DIHYDROFOLATE REDUCTASE 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 18020.5 
    Source Method genetically manipulated  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    FOL  FOLIC ACID  C19 H19 N7 O6   441.40  View 
    NAP  NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE  C21 H28 N7 O17 P3   743.41  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A DYR_ECOLI P00379     

    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)
    1.5.1.3        
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A
    GO ID   Ontology GO Term Definition
    6545   Glycine Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Glycine Aminoethanoic Acid. 
    6730   One Carbon Metabolic Process  The Chemical Reactions and Pathways Involving the Transfer of One Carbon Units in Various Oxidation States. 
    9165   Nucleotide Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Nucleotides Any Nucleoside That Is Esterified with (ortho)phosphate or an Oligophosphate At Any Hydroxyl Group On the Glycose Moiety; May Be Mono Di or Triphosphate; This Definition Includes Cyclic Nucleotides (nucleoside Cyclic Phosphates). 
    9257   10 Formyltetrahydrofolate Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of 10 Formyltetrahydrofolate the Formylated Derivative of Tetrahydrofolate. 
    31427   Response to Methotrexate  Any Process That Results in a Change in State or Activity of a Cell or an Organism (in Terms of Movement Secretion Enzyme Production Gene Expression Etc.) As a Result of a Methotrexate Stimulus. Methotrexate Is 4 Amino 10 Methylformic Acid a Folic Acid Analogue That Is a Potent Competitive Inhibitor of Dihydrofolate Reductase. 
    42493   Response to Drug  Any Process That Results in a Change in State or Activity of a Cell or an Organism (in Terms of Movement Secretion Enzyme Production Gene Expression Etc.) As a Result of a Drug Stimulus. a Drug Is a Substance Used in the Diagnosis Treatment or Prevention of a Disease. 
    46654   Tetrahydrofolate Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Tetrahydrofolate 5 6 7 8 Tetrahydrofolic Acid a Folate Derivative Bearing Additional Hydrogens On the Pterin Group. 
    46656   Folic Acid Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Folic Acid Pteroylglutamic Acid. 
    46677   Response to Antibiotic  Any Process That Results in a Change in State or Activity of a Cell or an Organism (in Terms of Movement Secretion Enzyme Production Gene Expression Etc.) As a Result of an Antibiotic Stimulus. an Antibiotic Is a Chemical Substance Produced by a Microorganism Which Has the Capacity to Inhibit the Growth of or to Kill Other Microorganisms. 
    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. 
    4146   Dihydrofolate Reductase Activity  Catalysis of the Reaction: 5 6 7 8 Tetrahydrofolate + Nadp+ = 7 8 Dihydrofolate + 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). 
    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. 
    50661   Nadp Binding  Interacting Selectively and Non Covalently with Nicotinamide Adenine Dinucleotide Phosphate a Coenzyme Involved in Many Redox and Biosynthetic Reactions; Binding May Be to Either the Oxidized Form Nadp+ or the Reduced Form Nadph. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A
    Scientific Name Escherichia coli  
    Genus Escherichia
    Host Vector Type Plasmid