Crystal Structure of Ca2+/CaM:Kv7.4 (KCNQ4) B helix complex
4GOW
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  •   Molecular Description Hide
    Classification: Protein Binding
    Structure Weight: 24707.07
    Molecule: Calmodulin
    Polymer: 1 Type: protein Length: 144
    Chains: D
    Organism: Homo sapiens
    Gene Names: CALM CAM CAM1 CAM2 CAMB CALML2 CAM3 CAMC CAMIII Gene View for CALM1 Gene View for CALM2 Gene View for CALM3
    UniProtKB: Search PDB | P62158   Protein Feature View
    Molecule: Potassium voltage-gated channel subfamily KQT member 4
    Polymer: 2 Type: protein Length: 72
    Chains: A
    Fragment: UNP residues 522-593
    Organism: Homo sapiens
    Gene Name: Gene View for KCNQ4
    UniProtKB: Search PDB | P56696   Protein Feature View
     
  •   Structure Validation Hide

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  •   Source Hide
    Polymer: 1
    Scientific Name: Homo sapiens   Taxonomy   Common Name: Human Expression System: Escherichia coli  
    Polymer: 2
    Scientific Name: Homo sapiens   Taxonomy   Common Name: Human Expression System: Escherichia coli  
     
  •   Ligand Chemical Component Hide
    Identifier Formula Name View Interactions
    CA
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    CA Ca
    CALCIUM ION
     
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Data in orange boxes are gathered from external resources (when available).
  Biological Assembly       
Biological assembly 1 assigned by authors and generated by PISA (software)
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  •   Deposition Summary Hide
    Authors:   Xu, Q.,  Chang, A.,  Tolia, A.,  Minor Jr., D.L.

    Deposition:   2012-08-20
    Release:   2012-12-12
    Last Modified (REVDAT):   2013-05-22
     
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    2013-05-22
    Citation
     
  •   Experimental Details Hide
    Method:   X-RAY DIFFRACTION
    Exp. Data:
      Structure Factors
    EDS  
    Resolution[Å]:   2.60
    R-Value: 0.238 (obs.)
    R-Free: 0.268
    Space Group: P 65 2 2
    Unit Cell:
      Length [Å] Angles [°]
    a = 104.07 α = 90.00 
    b = 104.07 β = 90.00 
    c = 113.73 γ = 120.00