1Z2C

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


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

  • 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 characte ...

    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 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Rho-related GTP-binding protein RhoC
A, C
193Homo sapiensGene Names: RHOC (ARH9, ARHC)
Find proteins for P08134 (Homo sapiens)
Go to Gene View: RHOC
Go to UniProtKB:  P08134
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Diaphanous protein homolog 1
B, D
383Mus musculusGene Names: Diaph1 (Diap1)
Find proteins for O08808 (Mus musculus)
Go to UniProtKB:  O08808
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A, B, C
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
GNP
Query on GNP

Download SDF File 
Download CCD File 
A, C
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.211 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 148.640α = 90.00
b = 85.350β = 90.00
c = 123.380γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata scaling
SOLVEphasing
SHARPphasing
ProDCdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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