1Z2C

Crystal structure of mDIA1 GBD-FH3 in complex with RhoC-GMPPNP

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.214 

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This is version 1.3 of the entry. See complete history. 


Literature

Structural and mechanistic insights into the interaction between Rho and mammalian Dia.

Rose, R., Weyand, M., Lammers, M., Ishizaki, T., Ahmadian, M.R., Wittinghofer, A.

(2005) Nature 435: 513-518

  • DOI: 10.1038/nature03604
  • Primary Citation of Related Structures:  
    1Z2C

  • PubMed Abstract: 

    • Formins are involved in a variety of cellular processes that require the remodelling of the cytoskeleton. They contain formin homology domains FH1 and FH2, which initiate actin assembly. The Diaphanous-related formins form a subgroup that is characterized by an amino-terminal Rho GTPase-binding domain (GBD) and an FH3 domain, which bind somehow to the carboxy-terminal Diaphanous autoregulatory domain (DAD) to keep the protein in an inactive conformation ...

    Formins are involved in a variety of cellular processes that require the remodelling of the cytoskeleton. They contain formin homology domains FH1 and FH2, which initiate actin assembly. The Diaphanous-related formins form a subgroup that is characterized by an amino-terminal Rho GTPase-binding domain (GBD) and an FH3 domain, which bind somehow to the carboxy-terminal Diaphanous autoregulatory domain (DAD) to keep the protein in an inactive conformation. Upon binding of activated Rho proteins, the DAD is released and the ability of the formin to nucleate and elongate unbranched actin filaments is induced. Here we present the crystal structure of RhoC in complex with the regulatory N terminus of mammalian Diaphanous 1 (mDia1) containing the GBD/FH3 region, an all-helical structure with armadillo repeats. Rho uses its 'switch' regions for interacting with two subdomains of GBD/FH3. We show that the FH3 domain of mDia1 forms a stable dimer and we also identify the DAD-binding site. Although binding of Rho and DAD on the N-terminal fragment of mDia1 are mutually exclusive, their binding sites are only partially overlapping. On the basis of our results, we propose a structural model for the regulation of mDia1 by Rho and DAD.

    Related Citations: 
    • The purification and crystallisation of mDia1 in complex with RhoC
      Rose, R., Wittinghofer, A., Weyand, M.
      (2005) Acta Crystallogr Sect F Struct Biol Cryst Commun 61: 225
    Organizational Affiliation: 

    Max-Planck-Institute of Molecular Physiology, Department of Structural Biology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Rho-related GTP-binding protein RhoC A, C193Homo sapiensMutation(s): 1 
Gene Names: RHOC, ARH9, ARHC
Find proteins for P08134 (Homo sapiens)
Explore P08134 
Go to UniProtKB:  P08134
NIH Common Fund Data Resources
PHAROS:  P08134
GTEx:  ENSG00000155366
Protein Feature View
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  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Diaphanous protein homolog 1 B, D383Mus musculusMutation(s): 0 
Gene Names: Diaph1, Diap1
Find proteins for O08808 (Mus musculus)
Explore O08808 
Go to UniProtKB:  O08808
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GNP
Query on GNP
Download Ideal Coordinates CCD File 
A, C
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N		 Ligand Interaction
MG
Query on MG
Download Ideal Coordinates CCD File 
A, B, C
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.214 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 148.64α = 90
b = 85.35β = 90
c = 123.38γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
ProDCdata collection
XDSdata scaling
SOLVEphasing
SHARPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-05-10
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description