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 1.4 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: https://doi.org/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.

    • 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
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CALMODULIN148Bos taurusMutation(s): 0 
UniProt
Find proteins for P62157 (Bos taurus)
Explore P62157 
Go to UniProtKB:  P62157
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62157
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
CALMODULIN-DEPENDENT PROTEIN KINASE II-ALPHA25Rattus norvegicusMutation(s): 0 
Gene Names: Camk2a
EC: 2.7.1.123
UniProt
Find proteins for P11275 (Rattus norvegicus)
Explore P11275 
Go to UniProtKB:  P11275
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP11275
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / 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]
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
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

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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
  • Version 1.4: 2023-08-09
    Changes: Database references, Derived calculations, Other, Refinement description