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@ARTICLE{Lyu:859286,
author = {Lyu, , Wenping and Arnesano, Fabio and Carloni, Paolo and
Natile, Giovanni and Rossetti, Giulia},
title = {{E}ffect of in vivo post-translational modifications of the
{HMGB}1 protein upon binding to platinated {DNA}: a
molecular simulation study},
journal = {Nucleic acids symposium series},
volume = {46},
number = {22},
issn = {1362-4962},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {FZJ-2019-00158},
pages = {11687 - 11697},
year = {2018},
abstract = {Cisplatin is one of the most widely used anticancer drugs.
Its efficiency is unfortunately severely hampered by
resistance. The High Mobility Group Box (HMGB) proteins may
sensitize tumor cells to cisplatin by specifically binding
to platinated DNA (PtDNA) lesions. In vivo, the HMGB/PtDNA
binding is regulated by multisite post-translational
modifications (PTMs). The impact of PTMs on the HMGB/PtDNA
complex at atomistic level is here investigated by enhanced
sampling molecular simulations. The PTMs turn out to affect
the structure of the complex, the mobility of several
regions (including the platinated site), and the nature of
the protein/PtDNA non-covalent interactions. Overall, the
multisite PTMs increase significantly the apparent synchrony
of all the contacts between the protein and PtDNA.
Consequently, the hydrophobic anchoring of the side chain of
F37 between the two cross-linked guanines at the platinated
site—a key element of the complexes formation - is more
stable than in the complex without PTM. These differences
can account for the experimentally measured greater affinity
for PtDNA of the protein isoforms with PTMs. The collective
behavior of multisite PTMs, as revealed here by the
synchrony of contacts, may have a general significance for
the modulation of intermolecular recognitions occurring in
vivo.},
cin = {IAS-5 / INM-9 / JARA-HPC / JSC},
ddc = {540},
cid = {I:(DE-Juel1)IAS-5-20120330 / I:(DE-Juel1)INM-9-20140121 /
$I:(DE-82)080012_20140620$ / I:(DE-Juel1)JSC-20090406},
pnm = {511 - Computational Science and Mathematical Methods
(POF3-511)},
pid = {G:(DE-HGF)POF3-511},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30407547},
UT = {WOS:000456714000009},
doi = {10.1093/nar/gky1082},
url = {https://juser.fz-juelich.de/record/859286},
}