2Z6E

Crystal Structure of Human DAAM1 FH2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of human DAAM1 formin homology 2 domain

Yamashita, M.Higashi, T.Suetsugu, S.Sato, Y.Ikeda, T.Shirakawa, R.Kita, T.Takenawa, T.Horiuchi, H.Fukai, S.Nureki, O.

(2007) Genes Cells 12: 1255-1265

  • DOI: 10.1111/j.1365-2443.2007.01132.x

  • PubMed Abstract: 
  • Reorganization of the actin filament is an essential process for cell motility, cell-cell attachment and intracellular transport. Formin proteins promote nucleation and elongation of the actin filament, and thus are key regulators for this process. T ...

    Reorganization of the actin filament is an essential process for cell motility, cell-cell attachment and intracellular transport. Formin proteins promote nucleation and elongation of the actin filament, and thus are key regulators for this process. The formin homology 2 (FH2) domain forms a head-to-tail ring-shaped dimer, and processively moves towards the barbed end. Dishevelled-associated activator of morphogenesis (DAAM) is a Rho-regulated formin implicated in neuronal development. Here, we present the crystal structure of human DAAM1 FH2 dimer at 2.8 A resolution. This is the first dimeric structure of the mammalian formin. The core structure of human DAAM1 is similar to those of mouse mDia1 and yeast Bni1p, whereas the orientations of the FH2 dimeric rings are different between human DAAM1 and yeast Bni1p, despite their similar dimer interactions. This difference supports the previous prediction that the dimer architecture of the formin is highly flexible in the actin-free state. The results of the actin assembly assays using the DAAM1 mutants demonstrated that the length of the linker connecting the N-terminal domain and the core region is crucial for the activity.


    Organizational Affiliation

    Department of Biological Information, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama-shi, Kanagawa 226-8501, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Disheveled-associated activator of morphogenesis 1
A, B, C, D
419Homo sapiensGene Names: DAAM1 (KIAA0666)
Find proteins for Q9Y4D1 (Homo sapiens)
Go to Gene View: DAAM1
Go to UniProtKB:  Q9Y4D1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.225 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 69.213α = 98.12
b = 91.895β = 90.32
c = 97.681γ = 104.79
Software Package:
Software NamePurpose
DENZOdata reduction
ADSCdata collection
SHARPphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-05-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance