The Deg proteases protect Synechocystis sp. PCC 6803 during heat and light stresses but are not essential for removal of damaged D1 protein during the Photosystem two repair cycle

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F06%3A00082608" target="_blank" >RIV/61388971:_____/06:00082608 - 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

The Deg proteases protect Synechocystis sp. PCC 6803 during heat and light stresses but are not essential for removal of damaged D1 protein during the Photosystem two repair cycle

Original language description

Members of the DegP/HtrA (or Deg) family of proteases play an important role in the proteolysis of misfolded and damaged proteins. As yet, their physiological role in oxygenic photosynthetic organisms is unclear, although it has been widely speculated that they participate in the degradation of the photodamaged D1 subunit in the photosystem two complex (PSII) repair cycle, which is needed to maintain PSII activity in both cyanobacteria and chloroplasts. In this work, we have now been able to demonstrateunambiguously, using a triple deg mutant created in the wild type strain of Synechocystis 6803, that although the Deg proteases are needed for photoprotection of Synechocystis sp. PCC 6803, they do not play an essential role in D1 turnover and PSII repair in vivo

Czech name

Proteázy Deg chrání sinici Synechocystis PCC 6803 běhen teplotního a světelného stresu ale nejsou nezbytné k odstranění poškozené bílkoviny D1 během opravy fotosystému II

Czech description

Zástupci rodiny proteáz DegP/HtrA hrají důležitou roli v proteolýze nefunkčních a poškozených proteinů. Jejich fyziologická role v oxygenních fotosyntetických organismech je najsná, i když se speculovalo, že se účastní degradace proteinu D1 během operavného cyklu fotosystému II (PSII). V této práci jsme s použitím trojitého delečního mutanta kmene Synechocystis 6803 demonstrovali, že ačkoliv jsou proteázy Deg potřebné pro fotoprotekci Synechocystis sp. PCC 6803, nehrají zásadní roli v obměně proteinu D1během opravného cyklu PSII in vivo

Type

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

CEP classification

EE - Microbiology, virology

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

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

Name of the periodical

Journal of Biological Chemistry

ISSN

0021-9258

e-ISSN

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Volume of the periodical

281

Issue of the periodical within the volume

41

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

30347-30355

UT code for WoS article

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EID of the result in the Scopus database

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