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@ARTICLE{Galkin:19044,
author = {Galkin, V.E. and Orlova, A. and Kudryashov, D.S. and
Solodukhin, A. and Reisler, E. and Schröder, G.F. and
Egelman, E.H.},
title = {{R}emodeling of actin filaments by {ADF}/cofilin proteins},
journal = {Proceedings of the National Academy of Sciences of the
United States of America},
volume = {108},
issn = {0027-8424},
address = {Washington, DC},
publisher = {Academy},
reportid = {PreJuSER-19044},
pages = {20568 - 20572},
year = {2011},
note = {This work was supported by National Institutes of Health
Grants GM081303 (E. H. E.) and GM077190 (E.R.).},
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 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.},
keywords = {Actin Depolymerizing Factors: chemistry / Actins: chemistry
/ Cofilin 2: chemistry / Cryoelectron Microscopy: methods /
Cytoskeleton: chemistry / Gene Library / Humans /
Microscopy, Electron: methods / Models, Molecular /
Molecular Conformation / Muscle, Skeletal: metabolism /
Polymers: chemistry / Protein Conformation / Protein
Structure, Secondary / Actin Depolymerizing Factors (NLM
Chemicals) / Actins (NLM Chemicals) / Cofilin 2 (NLM
Chemicals) / Polymers (NLM Chemicals) / J (WoSType)},
cin = {ICS-6},
ddc = {000},
cid = {I:(DE-Juel1)ICS-6-20110106},
pnm = {Funktion und Dysfunktion des Nervensystems / BioSoft:
Makromolekulare Systeme und biologische
Informationsverarbeitung},
pid = {G:(DE-Juel1)FUEK409 / G:(DE-Juel1)FUEK505},
shelfmark = {Multidisciplinary Sciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:22158895},
pmc = {pmc:PMC3251117},
UT = {WOS:000298289400064},
doi = {10.1073/pnas.1110109108},
url = {https://juser.fz-juelich.de/record/19044},
}