1XJD

Crystal Structure of PKC-theta complexed with Staurosporine at 2A resolution

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.216 
  • 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

Catalytic domain crystal structure of protein kinase C-theta (PKCtheta)

Xu, Z.B., Chaudhary, D., Olland, S., Wolfrom, S., Czerwinski, R., Malakian, K., Lin, L., Stahl, M.L., Joseph-McCarthy, D., Benander, C., Fitz, L., Greco, R., Somers, W.S., Mosyak, L.

(2004) J Biol Chem 279: 50401-50409

  • DOI: 10.1074/jbc.M409216200
  • Primary Citation of Related Structures:  
    1XJD

  • PubMed Abstract: 

    • A member of the novel protein kinase C (PKC) subfamily, PKC, is an essential component of the T cell synapse and is required for optimal T cell activation and interleukin-2 production. Selective involvement of PKC in TCR signaling makes this enzyme an at ...

    A member of the novel protein kinase C (PKC) subfamily, PKC, is an essential component of the T cell synapse and is required for optimal T cell activation and interleukin-2 production. Selective involvement of PKC in TCR signaling makes this enzyme an attractive therapeutic target in T cell-mediated disease processes. In this report we describe the crystal structure of the catalytic domain of PKC at 2.0-A resolution. Human recombinant PKC kinase domain was expressed in bacteria as catalytically active phosphorylated enzyme and co-crystallized with its subnanomolar, ATP site inhibitor staurosporine. The structure follows the classic bilobal kinase fold and shows the enzyme in its active conformation and phosphorylated state. Inhibitory interactions between conserved features of staurosporine and the ATP-binding cleft are accompanied by closing of the glycine-rich loop, which also maintains an inhibitory arrangement by blocking the phosphate recognition subsite. The two major phosphorylation sites, Thr-538 in the activation loop and Ser-695 in the hydrophobic motif, are both occupied in the structure, playing key roles in stabilizing active conformation of the enzyme and indicative of PKC autocatalytic phosphorylation and activation during bacterial expression. The PKC-staurosporine complex represents the first kinase domain crystal structure of any PKC isotypes to be determined and as such should provide valuable insight into PKC specificity and into rational drug design strategies for PKC selective leads.

    Organizational Affiliation: 

    Department of Chemical and Screening Sciences, Inflammation Department, Wyeth Research, Cambridge, Massachusetts 02140, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein kinase C, theta type A345Homo sapiensMutation(s): 2 
Gene Names: PKC, PRKCQ, PRKCT
EC: 2.7.1 (PDB Primary Data), 2.7.11.13 (UniProt)
Find proteins for Q04759 (Homo sapiens)
Explore Q04759 
Go to UniProtKB:  Q04759
NIH Common Fund Data Resources
PHAROS:  Q04759
GTEx:  ENSG00000065675
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
STU
Query on STU
Download Ideal Coordinates CCD File 
A
STAUROSPORINE
C28 H26 N4 O3
HKSZLNNOFSGOKW-FYTWVXJKSA-N		 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP		AL-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO		AL-PEPTIDE LINKINGC4 H10 N O6 PTHR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
STOIC50:  8   nM  BindingDB
STOIC50:  7   nM  BindingDB
STOIC50:  2.700000047683716   nM  BindingDB
STOIC50:  9   nM  BindingDB
STOKd:  8.5   nM  BindingDB
STUKi:  0.33000001311302185   nM  Binding MOAD
STOIC50:  3   nM  BindingDB
STOIC50:  190   nM  BindingDB
STOKi :  0.33000001311302185   nM  PDBBind
STOIC50:  0.07999999821186066   nM  BindingDB
STOIC50:  23   nM  BindingDB
STOIC50:  0.6000000238418579   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 139.566α = 90
b = 42.4β = 116.24
c = 67.678γ = 90
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2004-09-23 
  • Released Date: 2004-10-19 
    • Deposition Author(s): Xu, Z.B.

Revision History 

  • Version 1.0: 2004-10-19
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance