1CM4

Motions of calmodulin-four-conformer refinement


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.166 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Motions of calmodulin characterized using both Bragg and diffuse X-ray scattering.

Wall, M.E.Clarage, J.B.Phillips Jr., G.N.

(1997) Structure 5: 1599-1612

  • DOI: 10.1016/s0969-2126(97)00308-0
  • Primary Citation of Related Structures:  
    1CM1, 1CM4

  • PubMed Abstract: 
  • Calmodulin is a calcium-activated regulatory protein which can bind to many different targets. The protein resembles a highly flexible dumbbell, and bends in the middle as it binds. This and other motions must be understood to formulate a realistic model of calmodulin function ...

    Calmodulin is a calcium-activated regulatory protein which can bind to many different targets. The protein resembles a highly flexible dumbbell, and bends in the middle as it binds. This and other motions must be understood to formulate a realistic model of calmodulin function.


    Related Citations: 
    • Modulation of Calmodulin Plasticity in Molecular Recognition on the Basis of X-Ray Structures
      Meador, W.E., Means, A.R., Quiocho, F.A.
      (1993) Science 262: 1718
    • Target Enzyme Recognition by Calmodulin: 2.4 A Structure of a Calmodulin-Peptide Complex
      Meador, W.E., Means, A.R., Quiocho, F.A.
      (1992) Science 257: 1251

    Organizational Affiliation

    Department of Biochemistry and Cell Biology, The WM Keck Center for Computational Biology, Rice University Houston, TX 77005-1892, USA, mewall@bioc.rice.edu



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CALMODULINA148Bos taurusMutation(s): 0 
Gene Names: CALMCAM
UniProt
Find proteins for P62157 (Bos taurus)
Explore P62157 
Go to UniProtKB:  P62157
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
CALMODULIN-DEPENDENT PROTEIN KINASE II-ALPHAB25N/AMutation(s): 0 
EC: 2.7.1.123
UniProt
Find proteins for P11275 (Rattus norvegicus)
Explore P11275 
Go to UniProtKB:  P11275
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download Ideal Coordinates CCD File 
C [auth A] , D [auth A] , E [auth A] , F [auth A] , G [auth A] , H [auth A] , I [auth A] , J [auth A] , 
C [auth A],  D [auth A],  E [auth A],  F [auth A],  G [auth A],  H [auth A],  I [auth A],  J [auth A],  K [auth A],  L [auth A],  M [auth A],  N [auth A],  O [auth A],  P [auth A],  Q [auth A],  R [auth A],  S [auth A]
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.166 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.751α = 90
b = 75.209β = 90
c = 120.073γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-03-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2013-07-24
    Changes: Structure summary