1CXZ

CRYSTAL STRUCTURE OF HUMAN RHOA COMPLEXED WITH THE EFFECTOR DOMAIN OF THE PROTEIN KINASE PKN/PRK1

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.214 

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Literature

The structural basis of Rho effector recognition revealed by the crystal structure of human RhoA complexed with the effector domain of PKN/PRK1.

Maesaki, R., Ihara, K., Shimizu, T., Kuroda, S., Kaibuchi, K., Hakoshima, T.

(1999) Mol Cell 4: 793-803

  • DOI: 10.1016/s1097-2765(00)80389-5
  • Primary Citation of Related Structures:  
    1CXZ

  • PubMed Abstract: 

    • The small G protein Rho has emerged as a key regulator of cellular events involving cytoskeletal reorganization. Here we report the 2.2 A crystal structure of RhoA bound to an effector domain of protein kinase PKN/PRK1. The structure reveals the antiparallel coiled-coil finger (ACC finger) fold of the effector domain that binds to the Rho specificity-determining regions containing switch I, beta strands B2 and B3, and the C-terminal alpha helix A5, predominantly by specific hydrogen bonds ...

    The small G protein Rho has emerged as a key regulator of cellular events involving cytoskeletal reorganization. Here we report the 2.2 A crystal structure of RhoA bound to an effector domain of protein kinase PKN/PRK1. The structure reveals the antiparallel coiled-coil finger (ACC finger) fold of the effector domain that binds to the Rho specificity-determining regions containing switch I, beta strands B2 and B3, and the C-terminal alpha helix A5, predominantly by specific hydrogen bonds. The ACC finger fold is distinct from those for other small G proteins and provides evidence for the diverse ways of effector recognition. Sequence analysis based on the structure suggests that the ACC finger fold is widespread in Rho effector proteins.

    Related Citations: 
    • Biochemical and crystallographic characterization of a Rho effector domain of the protein serine/threonine kinase N in a complex with RhoA
      Maesaki, R., Shimizu, T., Ihara, K., Kuroda, S., Kaibuchi, K., Hakoshima, T.
      (1999) J Struct Biol 126: 166
    Organizational Affiliation: 

    Division of Structural Biology, Nara Institute of Science and Technology, Japan.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (HIS-TAGGED TRANSFORMING PROTEIN RHOA(0-181))A182Homo sapiensMutation(s): 1 
Gene Names: RHOA, ARH12, ARHA, RHO12
EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P61586 (Homo sapiens)
Explore P61586 
Go to UniProtKB:  P61586
PHAROS:  P61586
GTEx:  ENSG00000067560 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61586
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (PKN)B86Homo sapiensMutation(s): 0 
Gene Names: PKN1, PAK1, PKN, PRK1, PRKCL1
EC: 2.7.11.13
UniProt & NIH Common Fund Data Resources
Find proteins for Q16512 (Homo sapiens)
Explore Q16512 
Go to UniProtKB:  Q16512
PHAROS:  Q16512
GTEx:  ENSG00000123143 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ16512
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GSP
Query on GSP
Download Ideal Coordinates CCD File 
D [auth A]5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE
C10 H16 N5 O13 P3 S
XOFLBQFBSOEHOG-UUOKFMHZSA-N		 Ligand Interaction
MG
Query on MG
Download Ideal Coordinates CCD File 
C [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.214 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.9α = 90
b = 66.9β = 90
c = 149.5γ = 90
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-10-08
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-03-14
    Changes: Database references