1WM4

Solution structure of mouse coactosin, an actin filament binding protein


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution structure of coactosin reveals structural homology to ADF/cofilin family proteins

Hellman, M.Paavilainen, V.O.Naumanen, P.Lappalainen, P.Annila, A.Permi, P.

(2004) Febs Lett. 576: 91-96

  • DOI: 10.1016/j.febslet.2004.08.068

  • PubMed Abstract: 
  • Coactosin is a small (MW approximately 15 kDa) evolutionarily conserved actin filament binding protein. It displays remote sequence homology to ADF/cofilin proteins and to the ADF-H domains of twinfilin and Abp1/drebrin. However, biochemical analyses ...

    Coactosin is a small (MW approximately 15 kDa) evolutionarily conserved actin filament binding protein. It displays remote sequence homology to ADF/cofilin proteins and to the ADF-H domains of twinfilin and Abp1/drebrin. However, biochemical analyses have demonstrated that coactosin has a very different role in actin dynamics from the ones of ADF/cofilin, twinfilin or Abp1/drebrin. To elucidate the molecular mechanism of coactosin/actin interaction, we determined the three-dimensional structure of mouse coactosin by multidimensional NMR spectroscopy. We find that the coactosin structure is homologous to ADF/cofilin and to the ADF-H domains of twinfilin. Furthermore, the regions that have been shown to be important for actin filament interactions in ADF/cofilins are structurally conserved in coactosin suggesting that these two proteins interact with F-actin through a conserved interface. Our analysis also identifies key structural differences between these proteins that may account for the differences in biochemical activities and cellular roles of these proteins.


    Organizational Affiliation

    Program in Structural Biology and Biophysics, Institute of Biotechnology, University of Helsinki, Finland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Coactosin-like protein
A
142Mus musculusMutation(s): 0 
Gene Names: Cotl1 (Clp)
Find proteins for Q9CQI6 (Mus musculus)
Go to UniProtKB:  Q9CQI6
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1WM4 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-02
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance