Impact of dimeric organization of enzyme on its function: the case of photosynthetic water splitting

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F08%3A00005303" target="_blank" >RIV/61989592:15310/08:00005303 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Impact of dimeric organization of enzyme on its function: the case of photosynthetic water splitting

Original language description

It is a question of whether the supramolecular organization of the protein complex has an impact on its function, or not. In the case of the photosystem II (PSII), water splitting might be influenced by cooperation of the PSIIs. Since PSII is the sourceof the atmospheric oxygen and because better understanding of the water splitting may contribute to the effective use of water as an alternative energy source, possible cooperation should be analyzed and discussed. We suggest that the dimeric organization of the PSII induces cooperation in the water splitting. We show that the model of monomeric PSII is unable to produce the oxygen after the second short flash (associated with the double turnover of the PSII), in contrast to the experimental data and model of dimeric PSII with considered cooperation. On the basis of this fact and partially from the support from other studies, we concluded that the double turnover of the PSII induced by short flashes might be caused by the cooperation in

Czech name

Dopad dimerové organizace enzymu ne jeho funkci: případ štěpení vody ve fotosyntéze

Czech description

Prezentujeme 3 kinetické modely funkce fotosystému II (PSII): první "multi-units" PSII model je model prezentovaný dřive (Jablonsky a Lazar, Biophys. J. 94, 2725-2736, 2008), druhý je model monoméru PSII a třetí je model diméru PSII. Pomocí simulací je ukázano, že pouze model diméru PSII je schopen simulovat nenulový vývoj kyslíku po druhem záblesku. Důležitost dimerizace PSII je dále diskutována.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BO - Biophysics

OECD FORD branch

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Project

<a href="/en/project/GD522%2F08%2FH003" target="_blank" >GD522/08/H003: Integration of doctoral studies in biochemistry, plant physiology and biophysics</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Bioinformatics

ISSN

1367-4803

e-ISSN

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Volume of the periodical

24

Issue of the periodical within the volume

23

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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