1RFJ

Crystal Structure of Potato Calmodulin PCM6


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 

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This is version 1.3 of the entry. See complete history


Literature

Structure of potato calmodulin PCM6: the first report of the three-dimensional structure of a plant calmodulin.

Yun, C.H.Bai, J.Sun, D.Y.Cui, D.F.Chang, W.R.Liang, D.C.

(2004) Acta Crystallogr D Biol Crystallogr 60: 1214-1219

  • DOI: 10.1107/S0907444904009771
  • Primary Citation of Related Structures:  
    1RFJ

  • PubMed Abstract: 
  • The crystal structure of a potato calmodulin (PCM6) was solved by molecular replacement and refined to a crystallographic R factor of 22.8% (R(free) = 25.0%) using X-ray diffraction data in the resolution range 8.0-2.0 A. This is the first report of the three-dimensional structure of a plant Ca(2+)-calmodulin ...

    The crystal structure of a potato calmodulin (PCM6) was solved by molecular replacement and refined to a crystallographic R factor of 22.8% (R(free) = 25.0%) using X-ray diffraction data in the resolution range 8.0-2.0 A. This is the first report of the three-dimensional structure of a plant Ca(2+)-calmodulin. PCM6 crystallizes in a crystal form that belongs to space group P2(1)2(1)2(1), which is different to that of most other calmodulin crystals. The main structural difference between PCM6 and the other calmodulins is in the central helix region and appears to be caused by crystal packing. The surface properties of PCM6 molecules were compared with those of animal calmodulins, which provided an explanation for the unique crystal-packing state of PCM6.


    Organizational Affiliation

    National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, People's Republic of China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
calmodulinA149Solanum tuberosumMutation(s): 0 
Gene Names: PCM6PCM5PCM7PCM8
UniProt
Find proteins for Q7DMN9 (Solanum tuberosum)
Explore Q7DMN9 
Go to UniProtKB:  Q7DMN9
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 24.44α = 90
b = 68.98β = 90
c = 109.89γ = 90
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-06-29
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description