1EES

SOLUTION STRUCTURE OF CDC42HS COMPLEXED WITH A PEPTIDE DERIVED FROM P-21 ACTIVATED KINASE, NMR, 20 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the complex of Cdc42Hs with a peptide derived from P-21 activated kinase.

Gizachew, D.Guo, W.Chohan, K.K.Sutcliffe, M.J.Oswald, R.E.

(2000) Biochemistry 39: 3963-3971


  • PubMed Abstract: 
  • Cdc42Hs is a member of the Ras superfamily of GTPases and initiates a cascade that begins with the activation of several kinases, including p21-activated kinase (PAK). We have previously used a 46 amino acid fragment of PAK (PBD46) to define the bind ...

    Cdc42Hs is a member of the Ras superfamily of GTPases and initiates a cascade that begins with the activation of several kinases, including p21-activated kinase (PAK). We have previously used a 46 amino acid fragment of PAK (PBD46) to define the binding surface on Cdc42Hs [Guo et al. (1998) Biochemistry 37, 14030-14037]. Here we describe the three-dimensional solution structure of the Cdc42Hs. GMPPCP-PBD46 complex. Heteronuclear NMR methods were used to assign resonances in the complex, and approximately 2400 distance and dihedral restraints were used to calculate a set of 20 structures using a combination of distance geometry, simulated annealing, and chemical shift and Ramachandran refinement. The overall structure of Cdc42Hs in the complex differs from the uncomplexed structure in two major aspects: (1) the first alpha helix is reoriented to accommodate the binding of the peptide and (2) the regions corresponding to switch I and switch II are less disordered. As suggested by our previous work (Guo et al., 1998) and similar to the complex between Cdc42Hs and fACK [Mott et al. (1999) Nature 399, 384-388], PBD46 forms an intermolecular beta-sheet with beta2 of Cdc42Hs and contacts both switch I and switch II. The extensive binding surface between PBD46 and Cdc42Hs can account for both the high affinity of the complex and the inhibition by PBD46 of GTP hydrolysis.


    Related Citations: 
    • Backbone Dynamics of Inactive, Active, and Effector-Bound Cdc42Hs from Measurements of (15)N Relaxation Parameters at Multiple Field Strengths
      Loh, A.P.,Guo, W.,Nicholson, L.K.,Oswald, R.E.
      (1999) Biochemistry 38: 12547
    • Identification of the Binding Surface on Cdc42Hs for p21-Activated Kinase
      Guo, W.,Sutcliffe, M.J.,Cerione, R.A.,Oswald, R.E.
      (1998) Biochemistry 37: 14030
    • Definition of the Switch Surface in the Solution Structure of Cdc42Hs
      Feltham, J.L.,Dotsch, V.,Raza, S.,Manor, D.,Cerione, R.A.,Sutcliffe, M.J.,Wagner, G.,Oswald, R.E.
      (1997) Biochemistry 36: 8755


    Organizational Affiliation

    Department of Molecular Medicine, Cornell University, Ithaca, New York 14853, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GTP-BINDING PROTEIN
A
178Homo sapiensMutation(s): 0 
Gene Names: CDC42
Find proteins for P60953 (Homo sapiens)
Go to Gene View: CDC42
Go to UniProtKB:  P60953
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
P21-ACTIVATED KINASE
B
46Mus musculusMutation(s): 0 
Gene Names: Pak3 (Pak-3, Pakb, Stk4)
EC: 2.7.11.1
Find proteins for Q61036 (Mus musculus)
Go to UniProtKB:  Q61036
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy 
  • Olderado: 1EES Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-03-29
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance