1CTP

STRUCTURE OF THE MAMMALIAN CATALYTIC SUBUNIT OF CAMP-DEPENDENT PROTEIN KINASE AND AN INHIBITOR PEPTIDE DISPLAYS AN OPEN CONFORMATION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of the mammalian catalytic subunit of cAMP-dependent protein kinase and an inhibitor peptide displays an open conformation.

Karlsson, R.Zheng, J.Xuong, N.Taylor, S.S.Sowadski, J.M.

(1993) Acta Crystallogr.,Sect.D 49: 381-388

  • DOI: 10.1107/S0907444993002306

  • PubMed Abstract: 
  • The crystal structure of a binary complex of the porcine heart catalytic (C) subunit of cAMP-dependent protein kinase (space group P4(1)32; a = 171.5 A) complexed with a di-iodinated peptide inhibitor, PKI(5-24), has been solved and refined to 2.9 A ...

    The crystal structure of a binary complex of the porcine heart catalytic (C) subunit of cAMP-dependent protein kinase (space group P4(1)32; a = 171.5 A) complexed with a di-iodinated peptide inhibitor, PKI(5-24), has been solved and refined to 2.9 A resolution with an overall R of 21.1%. The r.m.s. deviations from ideal bond lengths and angles are 0.022 A and 4.3 degrees. A single isotropic B of 17 A(2) was used for all atoms. The structure solution was carried out initially by molecular replacement of electron density followed by refinement against atomic coordinates from orthorhombic crystals of a binary complex of the mouse recombinant enzyme previously described [Knighton, Zheng, Ten Eyck, Ashford, Xuong, Taylor & Sowadski (1991). Science, 253, 407-414]. The most striking difference between the two crystal structures is a large displacement of the small lobe of the enzyme. In the cubic crystal, the beta-sheet of the small lobe is rotated by 15 degrees and translated by 1.9 A with respect to the orthorhombic crystal. Possible explanations for why this binary complex crystallized in an open conformation in contrast to a similar binary complex of the recombinant enzyme are discussed. This study demonstrates that considerable information about parts of a crystal structure can be obtained without a complete crystal structure analysis. Specifically, the six rigid-group parameters of a poly alanine model of the beta-structure were obtained satisfactorily from a crystal structure by refinement of difference Fourier coefficients based on an approximate partial structure model.


    Related Citations: 
    • Crystal Structure of the Catalytic Subunit of Cyclic Adenosine Monophosphate-Dependent Protein Kinase
      Knighton, D.R.,Zheng, J.,Eyck, L.F.T.,Ashford, V.A.,Xuong, N.-H.,Taylor, S.S.,Sowadski, J.M.
      (1991) Science 253: 407
    • Crystal-Structure of the Catalytic Subunit of Camp-Dependent Protein-Kinase Complexed with a Mgatp and Peptide Inhibitor
      Zheng, J.,Knighton, D.R.,Xuong, N.-H.,Eyck, L.F.T.,Karlsson, R.,Taylor, S.S.,Sowadski, J.M.
      (1993) Biochemistry 32: 2154
    • 2.0 Angstroms Refined Crystal Structure of the Catalytic Subunit of Camp-Dependent Protein Kinase Complexed with a Peptide Inhibitor and Detergent
      Knighton, D.R.,Bell, S.M.,Zheng, J.,Eyck, L.F.T.,Xuong, N.-H.,Taylor, S.S.,Sowadski, J.M.
      (1993) Acta Crystallogr.,Sect.D 49: 357
    • Structure of a Peptide Inhibitor Bound to the Catalytic Subunit of Cyclic Adenosine Monophosphate-Dependent Protein Kinase
      Knighton, D.R.,Zheng, J.,Eyck, L.F.T.,Xuong, N.-H.,Taylor, S.S.,Sowadski, J.M.
      (1991) Science 253: 414
    • 2.2 Angstroms Refined Crystal-Structure of the Catalytic Subunit of Camp-Dependent Protein-Kinase Complexed with Mnatp and a Peptide Inhibitor
      Zheng, J.H.,Trafny, E.A.,Knighton, D.R.,Xuong, N.-H.,Taylor, S.S.,Eyck, L.F.T.,Sowadski, J.M.
      (1993) Acta Crystallogr.,Sect.D 49: 362
    • Expression of the Catalytic Subunit of Camp-Dependent Protein Kinase in Escherichia Coli
      Slice, L.W.,Taylor, S.S.
      (1989) J.Biol.Chem. 264: 20940


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
cAMP-DEPENDENT PROTEIN KINASE
E
350Sus scrofaGene Names: PRKACA
EC: 2.7.11.11
Find proteins for P36887 (Sus scrofa)
Go to Gene View: PRKACA
Go to UniProtKB:  P36887
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
cAMP-dependent protein kinase inhibitor, alpha form
I
20Oryctolagus cuniculusGene Names: PKIA (PRKACN1)
Find proteins for P61926 (Oryctolagus cuniculus)
Go to Gene View: PKIA
Go to UniProtKB:  P61926
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MYR
Query on MYR

Download SDF File 
Download CCD File 
E
MYRISTIC ACID
C14 H28 O2
TUNFSRHWOTWDNC-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
TYI
Query on TYI
I
L-PEPTIDE LINKINGC9 H9 I2 N O3TYR
TPO
Query on TPO
E
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • Space Group: P 41 3 2
Unit Cell:
Length (Å)Angle (°)
a = 171.500α = 90.00
b = 171.500β = 90.00
c = 171.500γ = 90.00
Software Package:
Software NamePurpose
TNTrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-07-18
    Type: Source and taxonomy