2Z6E

Crystal Structure of Human DAAM1 FH2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.225 
  • R-Value Observed: 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
  • Primary Citation of Related Structures:  
    2Z6E

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Disheveled-associated activator of morphogenesis 1A, B, C, D419N/AMutation(s): 0 
Gene Names: DAAM1
Find proteins for Q9Y4D1 (Homo sapiens)
Explore Q9Y4D1 
Go to UniProtKB:  Q9Y4D1
NIH Common Fund Data Resources
PHAROS  Q9Y4D1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.225 
  • R-Value Observed: 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
CNSrefinement
ADSCdata collection
DENZOdata reduction
SHARPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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