Trolox, a water soluble analogue of alpha-tocopherol, photoprotects the D1 protein of photosystem II reaction centre in vitro. Is this physiologically relevant?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F11%3A43882585" target="_blank" >RIV/60076658:12310/11:43882585 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/bi201195u" target="_blank" >http://dx.doi.org/10.1021/bi201195u</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/bi201195u" target="_blank" >10.1021/bi201195u</a>
Alternative languages
Result language
angličtina
Original language name
Trolox, a water soluble analogue of alpha-tocopherol, photoprotects the D1 protein of photosystem II reaction centre in vitro. Is this physiologically relevant?
Original language description
We have studied the endogenous production of singlet oxygen in preparations of the five-chlorophyll PSII RC (RC5) containing only one beta-carotene molecule. The temporal profile of singlet oxygen emission at 1270 nm photogenerated by RC5 in D2O followedthe expected biexponential behavior, with a rise time, unaffected by Trolox, and decay times different in presence or absence of Trolox. The ratio between the total and chemical bimolecular rate constants for the scavenging of singlet oxygen by Trolox in aqueous buffer indicated that most of the singlet oxygen photosensitized by methylene blue chemically reacts with Trolox in the assay buffer. The photoinduced oxygen consumption in the oxygen electrode, when RC5 and Trolox were mixed, revealed that Trolox was a better singlet oxygen scavenger than histidine and furfuryl alcohol at low concentrations. After its incorporation into detergent micelles in unbuffered solutions, Trolox was able to photoprotect the surface-exposed regions of t
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CE - Biochemistry
OECD FORD branch
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Result continuities
Project
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Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Biochemistry
ISSN
0006-2960
e-ISSN
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Volume of the periodical
50
Issue of the periodical within the volume
39
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
8291-8301
UT code for WoS article
000295187200005
EID of the result in the Scopus database
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