2CPK

CRYSTAL STRUCTURE OF THE CATALYTIC SUBUNIT OF CYCLIC ADENOSINE MONOPHOSPHATE-DEPENDENT PROTEIN KINASE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Work: 0.180 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Crystal structure of the catalytic subunit of cyclic adenosine monophosphate-dependent protein kinase.

Knighton, D.R., Zheng, J.H., Ten Eyck, L.F., Ashford, V.A., Xuong, N.H., Taylor, S.S., Sowadski, J.M.

(1991) Science 253: 407-414

  • DOI: 10.1126/science.1862342
  • Primary Citation of Related Structures:  
    2CPK

  • PubMed Abstract: 

    • The crystal structure of the catalytic subunit of cyclic adenosine monophosphate-dependent protein kinase complexed with a 20-amino acid substrate analog inhibitor has been solved and partially refined at 2.7 A resolution to an R factor of 0.212. The magnesium adenosine triphosphate (MgATP) binding site was located by difference Fourier synthesis ...

    The crystal structure of the catalytic subunit of cyclic adenosine monophosphate-dependent protein kinase complexed with a 20-amino acid substrate analog inhibitor has been solved and partially refined at 2.7 A resolution to an R factor of 0.212. The magnesium adenosine triphosphate (MgATP) binding site was located by difference Fourier synthesis. The enzyme structure is bilobal with a deep cleft between the lobes. The cleft is filled by MgATP and a portion of the inhibitor peptide. The smaller lobe, consisting mostly of amino-terminal sequence, is associated with nucleotide binding, and its largely antiparallel beta sheet architecture constitutes an unusual nucleotide binding motif. The larger lobe is dominated by helical structure with a single beta sheet at the domain interface. This lobe is primarily involved in peptide binding and catalysis. Residues 40 through 280 constitute a conserved catalytic core that is shared by more than 100 protein kinases. Most of the invariant amino acids in this conserved catalytic core are clustered at the sites of nucleotide binding and catalysis.

    Related Citations: 
    • Structure of a Peptide Inhibitor Bound to the Catalytic Subunit of Cyclic Adenosine Monophosphate-Dependent Protein Kinase
      Knighton, D.R., Zheng, J., Teneyck, L.F., Xuong, N.-H., Taylor, S.S., Sowadski, J.M.
      (1991) Science 253: 414
    • Expression of the Catalytic Subunit of C/AMP-Dependent Protein Kinase in Escherichia Coli
      Slice, L.W., Taylor, S.S.
      (1989) J Biol Chem 264: 20940
    Organizational Affiliation: 

    Department of Chemistry, University of California, San Diego, La Jolla 92093-0654.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
cAMP-DEPENDENT PROTEIN KINASE, CATALYTIC SUBUNIT E350Mus musculusMutation(s): 0 
Gene Names: Prkaca, Pkaca
EC: 2.7.1.37 (PDB Primary Data), 2.7.11.11 (UniProt)
Find proteins for P05132 (Mus musculus)
Explore P05132 
Go to UniProtKB:  P05132
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PEPTIDE INHIBITOR 20-MER I20Mus musculusMutation(s): 0 
Gene Names: Pkia
Find proteins for P63248 (Mus musculus)
Explore P63248 
Go to UniProtKB:  P63248
NIH Common Fund Data Resources
IMPC:  MGI:104747
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP		EL-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO		EL-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Work: 0.180 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.62α = 90
b = 76.52β = 90
c = 80.14γ = 90
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1993-01-15
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance