1A06

CALMODULIN-DEPENDENT PROTEIN KINASE FROM RAT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.313 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for the autoinhibition of calcium/calmodulin-dependent protein kinase I.

Goldberg, J.Nairn, A.C.Kuriyan, J.

(1996) Cell 84: 875-887

  • DOI: 10.1016/s0092-8674(00)81066-1
  • Primary Citation of Related Structures:  
    1A06

  • PubMed Abstract: 
  • The crystal structure of calcium/calmodulin-dependent protein kinase I has been determined in the autoinhibited form. The C-terminal regulatory region of the enzyme forms a helix-loop-helix segment that extends across the two domains of the catalytic core, making multiple inhibitory interactions ...

    The crystal structure of calcium/calmodulin-dependent protein kinase I has been determined in the autoinhibited form. The C-terminal regulatory region of the enzyme forms a helix-loop-helix segment that extends across the two domains of the catalytic core, making multiple inhibitory interactions. Elements of the first regulatory alpha helix and the loop interfere with the binding site for peptide substrates, while the loop and the second helix interact with the ATP-binding domain to induce conformational changes that obstruct the nucleotide binding pocket. One part of the calmodulin recognition element protrudes away from the catalytic domain and is potentially available for an initial interaction with calmodulin. The structure provides a view of an intact calmodulin target and suggests that substantial structural changes will accompany kinase activation by calmodulin binding to the regulatory region.


    Organizational Affiliation

    Howard Hughes Medical Institute, The Rockefeller University, New York, 10021, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CALCIUM/CALMODULIN-DEPENDENT PROTEIN KINASEA332Rattus norvegicusMutation(s): 0 
Gene Names: Camk1
EC: 2.7.1.123 (PDB Primary Data), 2.7.11.17 (UniProt)
UniProt
Find proteins for Q63450 (Rattus norvegicus)
Explore Q63450 
Go to UniProtKB:  Q63450
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.313 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.2α = 90
b = 76β = 90
c = 148.2γ = 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: 1998-04-08
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance