1CDM

MODULATION OF CALMODULIN PLASTICITY IN MOLECULAR RECOGNITION ON THE BASIS OF X-RAY STRUCTURES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

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: 1718-1721


  • PubMed Abstract: 
  • Calmodulin is the primary calcium-dependent signal transducer and regulator of a wide variety of essential cellular functions. The structure of calcium-calmodulin bound to the peptide corresponding to the calmodulin-binding domain of brain calmodulin ...

    Calmodulin is the primary calcium-dependent signal transducer and regulator of a wide variety of essential cellular functions. The structure of calcium-calmodulin bound to the peptide corresponding to the calmodulin-binding domain of brain calmodulin-dependent protein kinase II alpha was determined to 2 angstrom resolution. A comparison to two other calcium-calmodulin structures reveals how the central helix unwinds in order to position the two domains optimally in the recognition of different target enzymes and clarifies the role of calcium in maintaining recognition-competent domain structures.


    Related Citations: 
    • Target Enzyme Recognition by Calmodulin: 2.4 Angstroms Structure of a Calmodulin-Peptide Complex
      Meador, W.E.,Means, A.R.,Quiocho, F.A.
      (1992) Science 257: 1251


    Organizational Affiliation

    Howard Hughes Medical Institute, Baylor College of Medicine, Houston, TX 77030.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PEPTIDE CALMODULIN-DEPENDENT PROTEIN KINASE II
A
144Bos taurusGene Names: CALM (CAM)
Find proteins for P62157 (Bos taurus)
Go to UniProtKB:  P62157
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CALMODULIN
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 Work: 0.208 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 39.000α = 90.00
b = 75.200β = 90.00
c = 120.150γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-08-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance