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Crystal structure of the human HCN4 channel C-terminus carrying the S672R mutation
Biology and Chemistry Report
  •   Structure Details   Hide

    Structure Keywords

    Text cAMP binding, cAMP, NEUROPEPTIDE

    Polymeric Molecules

    Chain A
    Description Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 4 
    Fragment C-linker and CNBD: unp residues 521-724 
    Mutation S672R 
    Nonstandard Linkage no 
    Nonstandard Monomers no 
    Polymer Type polypeptide(L) 
    Formula Weight 24211.9 
    Source Method genetically manipulated  

    Ligands and Prosthetic Groups

    ID Name Chemical Formula Weight Ligand Structure
    CMP  ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE  C10 H12 N5 O6 P   329.21  View 
    PO4  PHOSPHATE ION  O4 P   94.97  View 
  •   Protein Details   Hide

    UniProtKB Information

    Chain SWS/UNP ID SWS/UNP Accession(s)
    A HCN4_HUMAN Q9Y3Q4     

    C: Cellular Location | F: Molecular Function | P: Biological Process
    Chain A
    GO ID   Ontology GO Term Definition
    2027   Regulation of Heart Rate  Any Process That Modulates the Frequency or Rate of Heart Contraction. 
    6813   Potassium Ion Transport  The Directed Movement of Potassium Ions (k+) Into Out of or Within a Cell or Between Cells by Means of Some Agent Such As a Transporter or Pore. 
    6814   Sodium Ion Transport  The Directed Movement of Sodium Ions (na+) Into Out of or Within a Cell or Between Cells by Means of Some Agent Such As a Transporter or Pore. 
    16021   Integral Component of Membrane  The Component of a Membrane Consisting of the Gene Products and Protein Complexes Having At Least Some Part of Their Peptide Sequence Embedded in the Hydrophobic Region of the Membrane. 
    5249   Voltage Gated Potassium Channel Activity  Enables the Transmembrane Transfer of a Potassium Ion by a Voltage Gated Channel. a Voltage Gated Channel Is a Channel Whose Open State Is Dependent On the Voltage Across the Membrane in Which It Is Embedded. 
    30552   Camp Binding  Interacting Selectively and Non Covalently with Camp the Nucleotide Cyclic AMP (adenosine 3' 5' Cyclophosphate). 

  •   Gene Details   Hide

    Genetic Source

    Chain A
    Common Name Human
    Scientific Name Homo sapiens  
    Gene hcn4
    Host Scientific Name Escherichia coli  
    Host Strain Bl21(de3)
    Host Vector Type Pet28
    Host Plasmid Name pSMT3_hHCN4_S672R

    Genome Information

    Chromosome Locus Gene ID Gene Name Symbol
    15 15q24.1 10021     hyperpolarization activated cyclic nucleotide gated potassium channel 4 HCN4