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Crystal structure of the catalytic domain of pyrrolysyl-tRNA synthetase in complex with AMPPNP (re-refined)
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Keywords LIGASE
    Text Structural Genomics, NPPSFA, National Project on Protein Structural and Functional Analyses, RIKEN Structural Genomics/Proteomics Initiative, RSGI, aminoacyl-tRNA synthetase, pyrrolysyl-tRNA synthetase, AMPPNP, LIGASE

    Polymeric Molecules

    Chain A
    Description Pyrrolysine--tRNA ligase 
    Mutation E444G 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 33344.4 
    Source Method genetically manipulated  
    Entity Name Pyrrolysyl-tRNA synthetase, PylRS 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    MG  MAGNESIUM ION  Mg   24.31  View 
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A PYLS_METMA Q8PWY1     

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A
    GO ID   Ontology GO Term Definition
    6418   TRNA Aminoacylation For Protein Translation  The Synthesis of Aminoacyl TRNA by the Formation of an Ester Bond Between the 3' Hydroxyl Group of the Most 3' Adenosine of the TRNA to Be Used in Ribosome Mediated Polypeptide Synthesis. 
    43039   TRNA Aminoacylation  The Chemical Reactions and Pathways by Which the Various Amino Acids Become Bonded to Their Corresponding Trnas. the Most Common Route For Synthesis of Aminoacyl TRNA Is by the Formation of an Ester Bond Between the 3' Hydroxyl Group of the Most 3' Adenosine of the TRNA Usually Catalyzed by the Cognate Aminoacyl TRNA Ligase. a Given Aminoacyl TRNA Ligase Aminoacylates All Species of an Isoaccepting Group of TRNA Molecules. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    49   TRNA Binding  Interacting Selectively and Non Covalently with Transfer Rna. 
    4812   Aminoacyl TRNA Ligase Activity  Catalysis of the Formation of Aminoacyl TRNA From ATP Amino Acid and TRNA with the Release of Diphosphate and Amp. 
    5524   ATP Binding  Interacting Selectively and Non Covalently with ATP Adenosine 5' Triphosphate a Universally Important Coenzyme and Enzyme Regulator. 
    16876   Ligase Activity Forming Aminoacyl TRNA and Related Compounds  Catalysis of the Joining of an Amino Acid and a Nucleic Acid (usually Trna) or Poly(ribitol Phosphate) with the Concomitant Hydrolysis of the Diphosphate Bond in ATP or a Similar Triphosphate. the Reaction Forms an Aminoacyl TRNA or a Related Compound. 

  •   Gene Details   Hide

    Genetic Source

    Chain A
    Scientific Name Methanosarcina mazei  
    Strain JCM9314
    Gene pyls
    Host Scientific Name Escherichia coli  
    Host Strain Bl21(de3) Codon Plus
    Host Vector Type Plasmid
    Host Plasmid Name pET28c