% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Capaldi:860921,
author = {Capaldi, Stefano and Suku, Eda and Antolini, Martina and Di
Giacobbe, Mattia and Giorgetti, Alejandro and Buffelli,
Mario},
title = {{A}llosteric sodium binding cavity in {GPR}3: a novel
player in modulation of {A}β production},
journal = {Scientific reports},
volume = {8},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {FZJ-2019-01573},
pages = {11102},
year = {2018},
abstract = {The orphan G-protein coupled receptor 3 (GPR3) belongs to
class A G-protein coupled receptors (GPCRs) and is highly
expressed in central nervous system neurons. Among other
functions, it is likely associated with neuron
differentiation and maturation. Recently, GPR3 has also been
linked to the production of Aβ peptides in neurons.
Unfortunately, the lack of experimental structural
information for this receptor hampers a deep
characterization of its function. Here, using an in-silico
and in-vitro combined approach, we describe, for the first
time, structural characteristics of GPR3 receptor underlying
its function: the agonist binding site and the allosteric
sodium binding cavity. We identified and validated by
alanine-scanning mutagenesis the role of three functionally
relevant residues: Cys2676.55, Phe1203.36 and Asp2.50. The
latter, when mutated into alanine, completely abolished the
constitutive and agonist-stimulated adenylate cyclase
activity of GPR3 receptor by disrupting its sodium binding
cavity. Interestingly, this is correlated with a decrease in
Aβ production in a model cell line. Taken together, these
results suggest an important role of the allosteric sodium
binding site for GPR3 activity and open a possible avenue
for the modulation of Aβ production in the Alzheimer's
Disease.},
cin = {IAS-5 / INM-9},
ddc = {600},
cid = {I:(DE-Juel1)IAS-5-20120330 / I:(DE-Juel1)INM-9-20140121},
pnm = {574 - Theory, modelling and simulation (POF3-574)},
pid = {G:(DE-HGF)POF3-574},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30038319},
UT = {WOS:000439421600070},
doi = {10.1038/s41598-018-29475-7},
url = {https://juser.fz-juelich.de/record/860921},
}