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@ARTICLE{Sebastiani:281720,
author = {Sebastiani, F. and Longo, M. and Orecchini, A. and Comez,
L. and De Francesco, A. and Muthmann, M. and Teixeira, S. C.
M. and Petrillo, C. and Sacchetti, F. and Paciaroni, A.},
title = {{H}ydration-dependent dynamics of human telomeric
oligonucleotides in the picosecond timescale: {A} neutron
scattering study},
journal = {The journal of chemical physics},
volume = {143},
number = {1},
issn = {1089-7690},
address = {Melville, NY},
publisher = {American Institute of Physics},
reportid = {FZJ-2016-01408},
pages = {015102 -},
year = {2015},
note = {"final draft post referee" can nicht beigebracht werden},
abstract = {The dynamics of the human oligonucleotide AG 3(T2 AG 3)3
has been investigated by incoherent neutron scattering in
the sub-nanosecond timescale. A hydration-dependent
dynamical activation of thermal fluctuations in weakly
hydrated samples was found, similar to that of protein
powders. The amplitudes of such thermal fluctuations were
evaluated in two different exchanged wave-vector ranges, so
as to single out the different contributions from intra- and
inter-nucleotide dynamics. The activation energy was
calculated from the temperature-dependent characteristic
times of the corresponding dynamical processes. The trends
of both amplitudes and activation energies support a picture
where oligonucleotides possess a larger conformational
flexibility than long DNA sequences. This additional
flexibility, which likely results from a significant
relative chain-end contribution to the average chain
dynamics, could be related to the strong structural
polymorphism of the investigated oligonucleotides.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106},
pnm = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)SPHERES-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000357873900039},
pubmed = {pmid:26156493},
doi = {10.1063/1.4923213},
url = {https://juser.fz-juelich.de/record/281720},
}