3J0S

Remodeling of actin filaments by ADF cofilin proteins


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Remodeling of actin filaments by ADF/cofilin proteins.

Galkin, V.E.Orlova, A.Kudryashov, D.S.Solodukhin, A.Reisler, E.Schroder, G.F.Egelman, E.H.

(2011) Proc.Natl.Acad.Sci.USA 108: 20568-20572

  • DOI: 10.1073/pnas.1110109108

  • PubMed Abstract: 
  • Cofilin/ADF proteins play key roles in the dynamics of actin, one of the most abundant and highly conserved eukaryotic proteins. We used cryoelectron microscopy to generate a 9-Å resolution three-dimensional reconstruction of cofilin-decorated actin ...

    Cofilin/ADF proteins play key roles in the dynamics of actin, one of the most abundant and highly conserved eukaryotic proteins. We used cryoelectron microscopy to generate a 9-Å resolution three-dimensional reconstruction of cofilin-decorated actin filaments, the highest resolution achieved for a complex of F-actin with an actin-binding protein. We show that the cofilin-induced change in the filament twist is due to a unique conformation of the actin molecule unrelated to any previously observed state. The changes between the actin protomer in naked F-actin and in the actin-cofilin filament are greater than the conformational changes between G- and F-actin. Our results show the structural plasticity of actin, suggest that other actin-binding proteins may also induce large but different conformational changes, and show that F-actin cannot be described by a single molecular model.


    Organizational Affiliation

    Department of Biochemistry and Molecular Genetics, University of Virginia, Box 800733, Charlottesville, VA 22908-0733, USA. galkin@virginia.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Actin, cytoplasmic 1
A, B, C, D, E, F, G, H, I, J, K, L
374Gallus gallusMutation(s): 0 
Gene Names: ACTB
Find proteins for P60706 (Gallus gallus)
Go to Gene View: ACTB
Go to UniProtKB:  P60706
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Cofilin-2
M, O, N, Q, P, S, R, U, T, W, V, X
166Homo sapiensMutation(s): 0 
Gene Names: CFL1 (CFL)
Find proteins for P23528 (Homo sapiens)
Go to Gene View: CFL1
Go to UniProtKB:  P23528
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 
Software Package:
Software NamePurpose
IHRSRrefinement
SPIDERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-12-21
    Type: Initial release
  • Version 1.1: 2012-01-11
    Type: Database references
  • Version 1.2: 2012-06-06
    Type: Database references
  • Version 1.3: 2018-07-18
    Type: Author supporting evidence, Data collection