2WM9

Structure of the complex between DOCK9 and Cdc42.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.211 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Activation of Rho Gtpases by Dock Exchange Factors is Mediated by a Nucleotide Sensor.

Yang, J.Zhang, Z.Roe, S.M.Marshall, C.J.Barford, D.

(2009) Science 325: 1398

  • DOI: 10.1126/science.1174468
  • Primary Citation of Related Structures:  
    2WM9, 2WMN, 2WMO

  • PubMed Abstract: 
  • Activation of Rho guanosine triphosphatases (GTPases) to the guanine triphosphate (GTP)-bound state is a critical event in their regulation of the cytoskeleton and cell signaling. Members of the DOCK family of guanine nucleotide exchange factors (GEFs) are important activators of Rho GTPases, but the mechanism of activation by their catalytic DHR2 domain is unknown ...

    Activation of Rho guanosine triphosphatases (GTPases) to the guanine triphosphate (GTP)-bound state is a critical event in their regulation of the cytoskeleton and cell signaling. Members of the DOCK family of guanine nucleotide exchange factors (GEFs) are important activators of Rho GTPases, but the mechanism of activation by their catalytic DHR2 domain is unknown. Through structural analysis of DOCK9-Cdc42 complexes, we identify a nucleotide sensor within the alpha10 helix of the DHR2 domain that contributes to release of guanine diphosphate (GDP) and then to discharge of the activated GTP-bound Cdc42. Magnesium exclusion, a critical factor in promoting GDP release, is mediated by a conserved valine residue within this sensor, whereas binding of GTP-Mg2+ to the nucleotide-free complex results in magnesium-inducing displacement of the sensor to stimulate discharge of Cdc42-GTP. These studies identify an unusual mechanism of GDP release and define the complete GEF catalytic cycle from GDP dissociation followed by GTP binding and discharge of the activated GTPase.


    Organizational Affiliation

    Section of Structural Biology, Institute of Cancer Research, Chester Beatty Laboratories, 237 Fulham Road, London SW3 6JB, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DEDICATOR OF CYTOKINESIS PROTEIN 9 A428Homo sapiensMutation(s): 0 
Gene Names: DOCK9KIAA1058ZIZ1
Find proteins for Q9BZ29 (Homo sapiens)
Explore Q9BZ29 
Go to UniProtKB:  Q9BZ29
NIH Common Fund Data Resources
PHAROS:  Q9BZ29
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
CELL DIVISION CONTROL PROTEIN 42 HOMOLOG B190Homo sapiensMutation(s): 0 
Gene Names: CDC42
EC: 3.6.5.2
Find proteins for P60953 (Homo sapiens)
Explore P60953 
Go to UniProtKB:  P60953
NIH Common Fund Data Resources
PHAROS:  P60953
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
A, B
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.211 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.41α = 90
b = 93.98β = 90
c = 88.2γ = 90
Software Package:
Software NamePurpose
iMOSFLMdata reduction
SCALAdata scaling
SHELXphasing
SHARPphasing
PHENIXrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-09-22
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-05-08
    Changes: Data collection, Experimental preparation, Other
  • Version 1.4: 2019-05-15
    Changes: Data collection, Experimental preparation