A Protein Environment-Modulated Energy Dissipation Channel in LHCII Antenna Complex
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F20%3A43901164" target="_blank" >RIV/60076658:12310/20:43901164 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/20:00532621
Result on the web
<a href="https://www.cell.com/iscience/pdf/S2589-0042(20)30620-9.pdf" target="_blank" >https://www.cell.com/iscience/pdf/S2589-0042(20)30620-9.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.isci.2020.101430" target="_blank" >10.1016/j.isci.2020.101430</a>
Alternative languages
Result language
angličtina
Original language name
A Protein Environment-Modulated Energy Dissipation Channel in LHCII Antenna Complex
Original language description
The major light-harvesting complex of photosystem II (LHCII) is the main contributor to sunlight energy harvesting in plants. The flexible design of LHCII underlies a photoprotective mechanism whereby this complex switches to a dissipative state in response to high light stress, allowing the rapid dissipation of excess excitation energy (non-photochemical quenching, NPQ). In this work, we locked single LHCII trimers in a quenched conformation after immobilization of the complexes in polyacrylamide gels to impede protein interactions. A comparison of their pigment excited-state dynamics with quenched LHCII aggregates in buffer revealed the presence of a new spectral band at 515 nm arising after chlorophyll excitation. This is suggested to be the signature of a carotenoid excited state, linked to the quenching of chlorophyll It excited states. Our data highlight the marked sensitivity of pigment excited-state dynamics in LHCII to structural changes induced by the environment.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GX19-28323X" target="_blank" >GX19-28323X: Relation between structure and function of carotenoids: New pathways to answer unresolved questions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
iScience
ISSN
2589-0042
e-ISSN
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Volume of the periodical
23
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
25
Pages from-to
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UT code for WoS article
000577093800006
EID of the result in the Scopus database
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