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Crystal structure of an oxygen binding H-NOX domain related to soluble guanylate cyclases (oxygen complex)
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Text H-NOX domain, Heme, Oxygen sensor, Signal transduction, Chemotaxis, SIGNALING PROTEIN

    Polymeric Molecules

    Chain A,B
    Description Heme-based Methyl-accepting Chemotaxis Protein 
    Fragment H-NOX domain 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 22047.7 
    Source Method genetically manipulated  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    CL  CHLORIDE ION  Cl   35.45  View 
    HEM  PROTOPORPHYRIN IX CONTAINING FE  C34 H32 Fe N4 O4   616.49  View 
    OXY  OXYGEN MOLECULE  O2   32.00  View 
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A,B Q8RBX6_CALS4 Q8RBX6     

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A,B
    GO ID   Ontology GO Term Definition
    20037   Heme Binding  Interacting Selectively and Non Covalently with Heme Any Compound of Iron Complexed in a Porphyrin (tetrapyrrole) Ring. 

  •   Gene Details   Hide

    Genetic Source

    Chain A,B
    Scientific Name Thermoanaerobacter tengcongensis  
    Genus Thermoanaerobacter
    Gene tar4
    Host Scientific Name Escherichia coli  
    Host Genus Escherichia
    Host Strain Tuner Bl21(de3) Plyss
    Host Vector Type Plasmid
    Host Plasmid Name pet20b