2CPK

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 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


  • 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 ...

    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: 
    • 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
    • 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


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
cAMP-DEPENDENT PROTEIN KINASE, CATALYTIC SUBUNIT
E
350Mus musculusMutation(s): 0 
Gene Names: Prkaca (Pkaca)
EC: 2.7.11.11
Find proteins for P05132 (Mus musculus)
Go to UniProtKB:  P05132
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PEPTIDE INHIBITOR 20-MER
I
20Mus musculusMutation(s): 0 
Gene Names: Pkia
Find proteins for P63248 (Mus musculus)
Go to UniProtKB:  P63248
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
E
L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
E
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Work: 0.180 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 73.620α = 90.00
b = 76.520β = 90.00
c = 80.140γ = 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: 1993-01-15
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance