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Substrate Specificity Conversion of E. coli Pyridoxal-5'-Phosphate Dependent Aspartate Aminotransferase to Tyrosine Aminotransferase: Chimera P4.
Biology and Chemistry Report
4F5I
  •   Structure Details   Hide

    Structure Keywords

    Keywords Transferase
    Text Aminotransferase, Transferase

    Polymeric Molecules

    Chain A,B
    Description Aspartate aminotransferase 
    Mutation I39V, N40D, L56M, N74T, T114S, S139T, S145A, V146I, F220I, F222I, A228G, Y254C, G259S, N295S, V385I 
    Nonstandard Linkage no 
    Nonstandard Monomers yes 
    Polymer Type polypeptide(L) 
    Formula Weight 44857.9 
    Source Method genetically manipulated  
    Entity Name AspAT, Transaminase A 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    MPD  (4S)-2-METHYL-2,4-PENTANEDIOL  C6 H14 O2   118.17  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B AAT_ECOLI P00509     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A B  2.6.1.1      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    6520   Cellular Amino Acid Metabolic Process  The Chemical Reactions and Pathways Involving Amino Acids Carboxylic Acids Containing One or More Amino Groups As Carried Out by Individual Cells. 
    9058   Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Substances; Typically the Energy Requiring Part of Metabolism in Which Simpler Substances Are Transformed Into More Complex Ones. 
    9094   L Phenylalanine Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of L Phenylalanine the L Enantiomer of 2 Amino 3 Phenylpropanoic Acid I.e. (2s) 2 Amino 3 Phenylpropanoic Acid. 
    33585   L Phenylalanine Biosynthetic Process From Chorismate Via Phenylpyruvate  The Chemical Reactions and Pathways Resulting in the Formation of L Phenylalanine From Other Compounds Including Chorismate Via the Intermediate Phenylpyruvate. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    5829   Cytosol  The Part of the Cytoplasm That Does Not Contain Organelles But Which Does Contain Other Particulate Matter Such As Protein Complexes. 
    3824   Catalytic Activity  Catalysis of a Biochemical Reaction At Physiological Temperatures. in Biologically Catalyzed Reactions the Reactants Are Known As Substrates and the Catalysts Are Naturally Occurring Macromolecular Substances Known As Enzymes. Enzymes Possess Specific Binding Sites For Substrates and Are Usually Composed Wholly or Largely of Protein But RNA That Has Catalytic Activity (ribozyme) Is Often Also Regarded As Enzymatic. 
    4069   L Aspartate:2 Oxoglutarate Aminotransferase Activity  Catalysis of the Reaction: L Aspartate + 2 Oxoglutarate = Oxaloacetate + L Glutamate. 
    4838   L Tyrosine:2 Oxoglutarate Aminotransferase Activity  Catalysis of the Reaction: L Tyrosine + 2 Oxoglutarate = 4 Hydroxyphenylpyruvate + L Glutamate. 
    8483   Transaminase Activity  Catalysis of the Transfer of an Amino Group to an Acceptor Usually a 2 Oxo Acid. 
    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. 
    30170   Pyridoxal Phosphate Binding  Interacting Selectively and Non Covalently with Pyridoxal 5' Phosphate 3 Hydroxy 5 (hydroxymethyl) 2 Methyl4 Pyridine Carboxaldehyde 5' Phosphate the Biologically Active Form of Vitamin B6. 
    42802   Identical Protein Binding  Interacting Selectively and Non Covalently with an Identical Protein or Proteins. 
    80130   L Phenylalanine:2 Oxoglutarate Aminotransferase Activity  Catalysis of the Reaction: L Phenylalanine + 2 Oxoglutarate = Phenylpyruvate + L Glutamate. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Scientific Name Escherichia coli  
    Strain K12
    Gene aat, aspc, b0928, jw0911
    Host Scientific Name Escherichia coli  
    Host Strain Bl21(de3)
    Host Vector Type Plasmid
    Host Plasmid Name pET45b