3DAD

Crystal structure of the N-terminal regulatory domains of the formin FHOD1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The Human Formin FHOD1 Contains a Bipartite Structure of FH3 and GTPase-Binding Domains Required for Activation.

Schulte, A.Stolp, B.Schonichen, A.Pylypenko, O.Rak, A.Fackler, O.T.Geyer, M.

(2008) Structure 16: 1313-1323

  • DOI: 10.1016/j.str.2008.06.008

  • PubMed Abstract: 
  • Formins induce the nucleation and polymerization of unbranched actin filaments. They share three homology domains required for profilin binding, actin polymerization, and regulation. Diaphanous-related formins (DRFs) are activated by GTPases of the R ...

    Formins induce the nucleation and polymerization of unbranched actin filaments. They share three homology domains required for profilin binding, actin polymerization, and regulation. Diaphanous-related formins (DRFs) are activated by GTPases of the Rho/Rac family, whose interaction with the N-terminal formin domain is thought to displace a C-terminal Diaphanous-autoregulatory domain (DAD). We have determined the structure of the N-terminal domains of FHOD1 consisting of a GTPase-binding domain (GBD) and the DAD-recognition domain FH3. In contrast to the formin mDia1, the FHOD1-GBD reveals a ubiquitin superfold as found similarly in c-Raf1 or PI3 kinase. This GBD is recruited by Rac and Ras GTPases in cells and plays an essential role for FHOD1-mediated actin remodeling. The FHOD1-FH3 domain is composed of five armadillo repeats, similarly to other formins. Mutation of one residue in the predicted DAD-interaction surface efficiently activates FHOD1 in cells. These results demonstrate that DRFs have evolved different molecular solutions to govern their autoregulation and GTPase specificity.


    Related Citations: 
    • Purification, crystallization and preliminary structural characterization of the N-terminal region of the human formin-homology protein FHOD1.
      Schulte, A.,Rak, A.,Pylypenko, O.,Ludwig, D.,Geyer, M.
      (2007) Acta Crystallogr Sect F Struct Biol Cryst Commun 63: 878


    Organizational Affiliation

    Abteilung Physikalische Biochemie, Max-Planck-Institut für Molekulare Physiologie, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FH1/FH2 domain-containing protein 1
A, B
339Homo sapiensMutation(s): 2 
Gene Names: FHOD1 (FHOS, FHOS1)
Find proteins for Q9Y613 (Homo sapiens)
Go to Gene View: FHOD1
Go to UniProtKB:  Q9Y613
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.219 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 35.444α = 78.24
b = 73.931β = 86.17
c = 78.674γ = 89.67
Software Package:
Software NamePurpose
CNSphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-09-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance