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Crystal structure of the E.coli LeuRS-tRNA complex with the non- cognate isoleucyl adenylate analogue
Biology and Chemistry Report
4CQN
  •   Structure Details   Hide

    Structure Keywords

    Keywords LIGASE/RNA
    Text LIGASE-RNA COMPLEX, LIGASE, TRANSLATIONAL FIDELITY, ADAPTIVE RESPONSE AND EVOLUTION

    Polymeric Molecules

    Chain A,D
    Description LEUCINE--TRNA LIGASE 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 99516.8 
    Source Method genetically manipulated  
    Entity Name LEUCYL-TRNA SYNTHETASE, LEURS, LEUCY-TRNA SYNTHETASE 
    Chain B,E
    Description ESCHERICHIA COLI TRNA-LEU UAA ISOACCEPTOR 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polyribonucleotide 
    Formula Weight 26475.9 
    Source Method synthetic  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    ILA  N-[ISOLEUCINYL]-N'-[ADENOSYL]-DIAMINOSUFONE  C16 H26 N8 O6 S   458.49  View 
    MG  MAGNESIUM ION  Mg   24.31  View 
    ZN  ZINC ION  Zn   65.41  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,D SYL_ECOLI P07813     

    Keywords and Names

    Chain(s) RCSB Name UniProtKB Name UniProtKB Keywords

    EC, Associated Pathways and Catalytic Sites

    Chain(s) IUBMB KEGG BioCyc
    A D  6.1.1.4      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,D
    GO ID   Ontology GO Term Definition
    6412   Translation  The Cellular Metabolic Process in Which a Protein Is Formed Using the Sequence of a Mature MRNA Molecule to Specify the Sequence of Amino Acids in a Polypeptide Chain. Translation Is Mediated by the Ribosome and Begins with the Formation of a Ternary Complex Between Aminoacylated Initiator Methionine TRNA GTP and Initiation Factor 2 Which Subsequently Associates with the Small Subunit of the Ribosome and an Mrna. Translation Ends with the Release of a Polypeptide Chain From the Ribosome. 
    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. 
    6429   Leucyl TRNA Aminoacylation  The Process of Coupling Leucine to Leucyl TRNA Catalyzed by Leucyl TRNA Synthetase. in TRNA Aminoacylation the Amino Acid Is First Activated by Linkage to AMP and Then Transferred to Either the 2' or the 3' Hydroxyl Group of the 3' Adenosine Residue of the Trna. 
    6450   Regulation of Translational Fidelity  Any Process That Modulates the Ability of the Translational Apparatus to Interpret the Genetic Code. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    166   Nucleotide Binding  Interacting Selectively and Non Covalently with a Nucleotide Any Compound Consisting of a Nucleoside That Is Esterified with (ortho)phosphate or an Oligophosphate At Any Hydroxyl Group On the Ribose or Deoxyribose. 
    2161   Aminoacyl TRNA Editing Activity  The Hydrolysis of an Incorrectly Aminoacylated Trna. 
    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. 
    4823   Leucine TRNA Ligase Activity  Catalysis of the Reaction: L Leucine + ATP + Trna(leu) = AMP + Diphosphate + 2 H(+) + Leu Trna(leu). 
    5524   ATP Binding  Interacting Selectively and Non Covalently with ATP Adenosine 5' Triphosphate a Universally Important Coenzyme and Enzyme Regulator. 
    16874   Ligase Activity  Catalysis of the Joining of Two Substances or Two Groups Within a Single Molecule with the Concomitant Hydrolysis of the Diphosphate Bond in ATP or a Similar Triphosphate. 


     
  •   Gene Details   Hide

    Genetic Source

    Chain A,D
    Scientific Name Escherichia coli k-12  
    Host Scientific Name Escherichia coli  
    Host Variant Codon Plus Ril
    Host Strain Bl21(de3)
    Host Vector Pet15b
    Host Vector Type Plasmid