5UPL

CDC42 binds PAK4 via an extended GTPase-effector inteface - 2 peptide: PAK4FL, CDC42 - UNREFINED


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.257 
  • R-Value Observed: 0.259 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

CDC42 binds PAK4 via an extended GTPase-effector interface.

Ha, B.H.Boggon, T.J.

(2018) Proc Natl Acad Sci U S A 115: 531-536

  • DOI: 10.1073/pnas.1717437115
  • Primary Citation of Related Structures:  
    5UPK, 5UPL

  • PubMed Abstract: 
  • The p21-activated kinase (PAK) group of serine/threonine kinases are downstream effectors of RHO GTPases and play important roles in regulation of the actin cytoskeleton, cell growth, survival, polarity, and development. Here we probe the interaction of the type II PAK, PAK4, with RHO GTPases ...

    The p21-activated kinase (PAK) group of serine/threonine kinases are downstream effectors of RHO GTPases and play important roles in regulation of the actin cytoskeleton, cell growth, survival, polarity, and development. Here we probe the interaction of the type II PAK, PAK4, with RHO GTPases. Using solution scattering we find that the full-length PAK4 heterodimer with CDC42 adopts primarily a compact organization. X-ray crystallography reveals the molecular nature of the interaction between PAK4 and CDC42 and shows that in addition to the canonical PAK4 CDC42/RAC interactive binding (CRIB) domain binding to CDC42 there are unexpected contacts involving the PAK4 kinase C-lobe, CDC42, and the PAK4 polybasic region. These additional interactions modulate kinase activity and increase the binding affinity of CDC42 for full-length PAK4 compared with the CRIB domain alone. We therefore show that the interaction of CDC42 with PAK4 can influence kinase activity in a previously unappreciated manner.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase PAK 4A453Homo sapiensMutation(s): 0 
Gene Names: PAK4KIAA1142
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for O96013 (Homo sapiens)
Explore O96013 
Go to UniProtKB:  O96013
PHAROS:  O96013
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 homologB185Homo sapiensMutation(s): 0 
Gene Names: CDC42
EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P60953 (Homo sapiens)
Explore P60953 
Go to UniProtKB:  P60953
PHAROS:  P60953
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
AL-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.257 
  • R-Value Observed: 0.259 
  • Space Group: P 63
  • Diffraction Data DOI: 10.15785/SBGRID/532 SBGrid
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 141.652α = 90
b = 141.652β = 90
c = 62.093γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data

  • Deposited Date: 2017-02-03 
  • Released Date: 2017-12-27 
  • Deposition Author(s): Ha, B.H., Boggon, T.J.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR01GM102262

Revision History  (Full details and data files)

  • Version 1.0: 2017-12-27
    Type: Initial release
  • Version 1.1: 2018-01-17
    Changes: Author supporting evidence, Database references
  • Version 1.2: 2018-01-24
    Changes: Database references
  • Version 1.3: 2020-01-01
    Changes: Author supporting evidence