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@ARTICLE{Yu:111908,
author = {Yu, X. and Goforth, C. and Meyer, C. and Rachel, R. and
Wirth, R. and Schröder, G.F. and Egelman, E.H.},
title = {{F}ilaments from {I}gnicoccus hospitalis {S}how {D}iversity
of {P}acking in {P}roteins {C}ontaining {N}-terminal {T}ype
{IV} {P}ilin {H}elices},
journal = {Journal of molecular biology},
volume = {422},
issn = {0022-2836},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {PreJuSER-111908},
pages = {274 - 281},
year = {2012},
note = {This work was supported by National Institutes of Health
grant EB001567 (to E.H.E.) and by WI 731/10-1 from the
Deutsche Forschungsgemeinschaft (to R.W. and R.R.).},
abstract = {Bacterial motility is driven by the rotation of flagellar
filaments that supercoil. The supercoiling involves the
switching of coiled-coil protofilaments between two
different states. In archaea, the flagellar filaments
responsible for motility are formed by proteins with
distinct homology in their N-terminal portion to bacterial
Type IV pilins. The bacterial pilins have a single
N-terminal hydrophobic α-helix, not the coiled coil found
in flagellin. We have used electron cryo-microscopy to study
the adhesion filaments from the archaeon Ignicoccus
hospitalis. While I. hospitalis is non-motile, these
filaments make transitions between rigid stretches and
curved regions and appear morphologically similar to true
archaeal flagellar filaments. A resolution of ~7.5Å allows
us to unambiguously build a model for the packing of these
N-terminal α-helices, and this packing is different from
several bacterial Type IV pili whose structure has been
analyzed by electron microscopy and modeling. Our results
show that the mechanism responsible for the supercoiling of
bacterial flagellar filaments cannot apply to archaeal
filaments.},
keywords = {Archaeal Proteins: chemistry / Archaeal Proteins:
metabolism / Cryoelectron Microscopy / Desulfurococcaceae:
metabolism / Fimbriae Proteins: chemistry / Fimbriae
Proteins: metabolism / Models, Molecular / Protein
Structure, Secondary / Archaeal Proteins (NLM Chemicals) /
Fimbriae Proteins (NLM Chemicals) / J (WoSType)},
cin = {ICS-6},
ddc = {570},
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 = {Biochemistry $\&$ Molecular Biology},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:22659006},
UT = {WOS:000308681000010},
doi = {10.1016/j.jmb.2012.05.031},
url = {https://juser.fz-juelich.de/record/111908},
}