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Crystal structure of purine nucleoside phosphorylase (W16Y, W94Y, W178Y, H257W) mutant from human complexed with guanine
Biology and Chemistry Report
4ECE
  •   Structure Details   Hide

    Structure Keywords

    Keywords TRANSFERASE
    Text TRANSFERASE, PNP, guanine, Purine nucleoside phosphorylase, nucleoside binding, purine base binding, purine-nucleoside phosphorylase activity, drug binding, transferring glycosyl groups, phosphate ion binding, intracellular, cytosol

    Polymeric Molecules

    Chain A,B,C,D,E,F
    Description Purine nucleoside phosphorylase 
    Mutation W16Y, W94Y, W178Y, H257W 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 36127.4 
    Source Method genetically manipulated  
    Entity Name PNP, Inosine phosphorylase 

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    GUN  GUANINE  C5 H5 N5 O   151.13  View 
     
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B,C,D,E,F PNPH_HUMAN B2R8S5     

    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  2.4.2.1      
    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B,C,D,E,F
    GO ID   Ontology GO Term Definition
    34356   NAD Biosynthesis Via Nicotinamide Riboside Salvage Pathway  The Chemical Reactions and Pathways Resulting in the Formation of Nicotinamide Adenine Dinucleotide (nad) From the Vitamin Precursor Nicotinamide Riboside. 
    5737   Cytoplasm  All of the Contents of a Cell Excluding the Plasma Membrane and Nucleus But Including Other Subcellular Structures. 
    5856   Cytoskeleton  Any of the Various Filamentous Elements That Form the Internal Framework of Cells and Typically Remain After Treatment of the Cells with Mild Detergent to Remove Membrane Constituents and Soluble Components of the Cytoplasm. the Term Embraces Intermediate Filaments Microfilaments Microtubules the Microtrabecular Lattice and Other Structures Characterized by a Polymeric Filamentous Nature and Long Range Order Within the Cell. the Various Elements of the Cytoskeleton Not Only Serve in the Maintenance of Cellular Shape But Also Have Roles in Other Cellular Functions Including Cellular Movement Cell Division Endocytosis and Movement of Organelles. 
    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. 
    16757   Transferase Activity Transferring Glycosyl Groups  Catalysis of the Transfer of a Glycosyl Group From One Compound (donor) to Another (acceptor). 


    Protein Analyses

    Measured Binding Affinities   

     
  •   Gene Details   Hide

    Genetic Source

    Chain A,B,C,D,E,F
    Common Name Human
    Scientific Name Homo sapiens  
    Gene np, pnp, x00737.1
    Host Scientific Name Escherichia coli  
    Host Strain Bl21(de3)plyss
    Host Vector Type Plasmid
    Host Plasmid Name pCRT7/NT-TOPO


    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    14 14q13.1 4860     purine nucleoside phosphorylase PNP