1CM4

Motions of calmodulin-four-conformer refinement


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.262 
  • R-Value Work: 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

  • Primary Citation of Related Structures:  1CM1

  • 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 m ...

    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: 
    • 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
    • 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


    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CALMODULIN
A
148Bos taurusGene Names: CALM (CAM)
Find proteins for P62157 (Bos taurus)
Go to UniProtKB:  P62157
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CALMODULIN-DEPENDENT PROTEIN KINASE II-ALPHA
B
25Rattus norvegicusGene Names: Camk2a
EC: 2.7.11.17
Find proteins for P11275 (Rattus norvegicus)
Go to UniProtKB:  P11275
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.166 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 38.751α = 90.00
b = 75.209β = 90.00
c = 120.073γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
DENZOdata reduction
X-PLORmodel building
SCALEPACKdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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