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Association of High Light-Inducible HliA/HliB Stress Proteins with Photosystem 1 Trimers and Monomers of the Cyanobacterium Synechocystis PCC 6803статья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 ноября 2015 г.
- Авторы: Akulinkina D.V., Bolychevseva Yu V., Elanskaya I.V., Karapetyan N.V., Yurina N.P.
- Журнал: Biochemistry (Moscow)
- Том: 80
- Номер: 10
- Год издания: 2015
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 1254
- Последняя страница: 1261
- DOI: 10.1134/S0006297915100053
- Аннотация: Hlip (high light_inducible proteins) are important for protection of the photosynthetic apparatus of cyanobacteria from light stress. However, the interaction of these proteins with chlorophyll–protein complexes of thylakoids remains unclear. The association of HliA/HliB stress proteins with photosystem 1 (PS1) complexes of the cyanobacterium Synechocystis PCC 6803 was studied to understand their function. Western blotting demonstrated that stress_induced HliA/HliB proteins are associated with PS1 trimers in wild_type cells grown under moderate light condition (40 μmol photons/m2 per sec). The content of these proteins increased 1.7_fold after light stress (150 μmol photons/m2 per sec) for 1 h. In the absence of PS1 trimers (ΔpsaL mutant), the HliA/HliB proteins are associated with PS1 monomers and the PS2 complex. HliA/HliB proteins are associated with PS1 monomers but not with PS1 trimers in Synechocystis PS2_deficient mutant grown at 5 μmol photons/m2 per sec; the content of Hli proteins associated with PS1 monomers increased 1.2_fold after light stress. The HliA/HliB proteins were not detected in wild_type cells of cyanobacteria grown in glucose_supplemented medium at 5 μmol photons/m2 per sec, but light stress induces the synthesis of stress proteins associated with PS1 trimers. Thus, for the first time, the association of HliA/HliB proteins not only with PS1 trimers, but also with PS1 monomers is shown, which suggests a universal role of these proteins in the protection of the photosynthetic apparatus from excess light.
- Добавил в систему: Еланская Ирина Владимировна