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@ARTICLE{Vlasov:866925,
author = {Vlasov, A. V. and Kovalev, K. V. and Marx, S.-H. and Round,
E. S. and Gushchin, I. Yu. and Polovinkin, V. A. and Tsoy,
N. M. and Okhrimenko, I. S. and Borshchevskiy, V. I. and
Büldt, G. D. and Ryzhykau, Yu. L. and Rogachev, A. V. and
Chupin, V. V. and Kuklin, A. I. and Dencher, N. A. and
Gordeliy, V. I.},
title = {{U}nusual features of the c-ring of {F}1{FO} {ATP}
synthases},
journal = {Scientific reports},
volume = {9},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {FZJ-2019-05978},
pages = {18547},
year = {2019},
abstract = {Membrane integral ATP synthases produce adenosine
triphosphate, the universal “energy currency” of most
organisms. However, important details of proton driven
energy conversion are still unknown. We present the first
high-resolution structure (2.3 Å) of the in meso
crystallized c-ring of 14 subunits from spinach
chloroplasts. The structure reveals molecular mechanisms of
intersubunit contacts in the c14-ring, and it shows
additional electron densities inside the c-ring which form
circles parallel to the membrane plane. Similar densities
were found in all known high-resolution structures of
c-rings of F1FO ATP synthases from archaea and bacteria to
eukaryotes. The densities might originate from isoprenoid
quinones (such as coenzyme Q in mitochondria and
plastoquinone in chloroplasts) that is consistent with
differential UV-Vis spectroscopy of the c-ring samples,
unusually large distance between polar/apolar interfaces
inside the c-ring and universality among different species.
Although additional experiments are required to verify this
hypothesis, coenzyme Q and its analogues known as electron
carriers of bioenergetic chains may be universal cofactors
of ATP synthases, stabilizing c-ring and prevent ion leakage
through it.},
cin = {ICS-6},
ddc = {600},
cid = {I:(DE-Juel1)ICS-6-20110106},
pnm = {552 - Engineering Cell Function (POF3-552)},
pid = {G:(DE-HGF)POF3-552},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31811229},
UT = {WOS:000501745000001},
doi = {10.1038/s41598-019-55092-z},
url = {https://juser.fz-juelich.de/record/866925},
}