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Crystal structure of tryptophan synthase alpha-subunit from the psychrophile Shewanella frigidimarina K14-2
Biology and Chemistry Report
3VND
  •   Structure Details   Hide

    Structure Keywords

    Keywords LYASE
    Text Psychrophilic enzyme, Cold adaptation, Tryptophan synthase, LYASE

    Polymeric Molecules

    Chain A,B,C,D,E,F,G,H
    Description Tryptophan synthase alpha chain 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 27828.8 
    Source Method genetically manipulated  
    Entity Name TSA 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    PE8  3,6,9,12,15,18,21-HEPTAOXATRICOSANE-1,23-DIOL  C16 H34 O9   370.44  View 
    SO4  SULFATE ION  O4 S   96.06  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B,C,D,E,F,G,H H1AFK5_SHEFR H1AFK5     

    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 D E F G H  4.2.1.20      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B,C,D,E,F,G,H
    GO ID   Ontology GO Term Definition
    162   Tryptophan Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Tryptophan the Chiral Amino Acid 2 Amino 3 (1h Indol 3 Yl)propanoic Acid; Tryptophan Is Synthesized From Chorismate Via Anthranilate. 
    6568   Tryptophan Metabolic Process  The Chemical Reactions and Pathways Involving Tryptophan the Chiral Amino Acid 2 Amino 3 (1h Indol 3 Yl)propanoic Acid. 
    8152   Metabolic Process  The Chemical Reactions and Pathways Including Anabolism and Catabolism by Which Living Organisms Transform Chemical Substances. Metabolic Processes Typically Transform Small Molecules But Also Include Macromolecular Processes Such As DNA Repair and Replication and Protein Synthesis and Degradation. 
    8652   Cellular Amino Acid Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Amino Acids Organic Acids Containing One or More Amino Substituents. 
    9073   Aromatic Amino Acid Family Biosynthetic Process  The Chemical Reactions and Pathways Resulting in the Formation of Aromatic Amino Acid Family Amino Acids with Aromatic Ring (phenylalanine Tyrosine Tryptophan). 
    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. 
    4834   Tryptophan Synthase Activity  Catalysis of the Reaction: L Serine + (1s 2r) 1 C (indol 3 Yl)glycerol 3 Phosphate = L Tryptophan + Glyceraldehyde 3 Phosphate + H2o. 
    16829   Lyase Activity  Catalysis of the Cleavage of C C C O C N and Other Bonds by Other Means Than by Hydrolysis or Oxidation or Conversely Adding a Group to a Double Bond. They Differ From Other Enzymes in That Two Substrates Are Involved in One Reaction Direction But Only One in the Other Direction. When Acting On the Single Substrate a Molecule Is Eliminated and This Generates Either a New Double Bond or a New Ring. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B,C,D,E,F,G,H
    Scientific Name Shewanella frigidimarina  
    Strain K14-2
    Gene trpa
    Host Scientific Name Escherichia coli  
    Host Strain Jm109
    Host Vector Type Plasmid
    Host Plasmid Name pUC19