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@ARTICLE{Schneider:16612,
author = {Schneider, R. and Schumacher, M.C. and Mueller, H. and
Nand, D. and Klaukien, V. and Heise, H. and Riedel, D. and
Wolf, G. and Behrmann, E. and Raunser, S. and Seidel, R. and
Engelhard, M. and Baldus, M.},
title = {{S}tructural {C}haracterization of {P}olyglutamine
{F}ibrils by {S}olid-{S}tate {NMR} {S}pectroscopy},
journal = {Journal of molecular biology},
volume = {412},
issn = {0022-2836},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {PreJuSER-16612},
pages = {121 - 136},
year = {2011},
note = {This work was supported by the Deutsche
Forschungsgemeinschaft (Grant RA 1781/1-1), the Max Planck
Society, the Fonds der chemischen Industrie (Grant 684052),
and Netherlands Organisation for Scientific Research (Grant
700.26.121). R.S. thanks the Deutsche Forschungsgemeinschaft
graduate school 782 "Spectroscopy and Dynamics of Molecular
Coils and Aggregates" for a PhD fellowship.},
abstract = {Protein aggregation via polyglutamine stretches occurs in a
number of severe neurodegenerative diseases such as
Huntington's disease. We have investigated fibrillar
aggregates of polyglutamine peptides below, at, and above
the toxicity limit of around 37 glutamine residues using
solid-state NMR and electron microscopy. Experimental data
are consistent with a dry fibril core of at least 70-80 Å
in width for all constructs. Solid-state NMR dipolar
correlation experiments reveal a largely β-strand character
of all samples and point to tight interdigitation of
hydrogen-bonded glutamine side chains from different sheets.
Two approximately equally frequent populations of glutamine
residues with distinct sets of chemical shifts are found,
consistent with local backbone dihedral angles compensating
for β-strand twist or with two distinct sets of side-chain
conformations. Peptides comprising 15 glutamine residues are
present as single extended β-strands. Data obtained for
longer constructs are most compatible with a superpleated
arrangement with individual molecules contributing
β-strands to more than one sheet and an antiparallel
assembly of strands within β-sheets.},
keywords = {Magnetic Resonance Spectroscopy: methods / Microscopy,
Electron / Peptides: chemical synthesis / Peptides:
chemistry / Peptides (NLM Chemicals) / polyglutamine (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:21763317},
UT = {WOS:000294523300012},
doi = {10.1016/j.jmb.2011.06.045},
url = {https://juser.fz-juelich.de/record/16612},
}