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dc.contributor.authorPapadatos, Sotiris-
dc.contributor.authorCharalambous, Andreas-
dc.contributor.authorDaskalakis, Vangelis-
dc.date.accessioned2017-11-21T09:40:15Z-
dc.date.available2017-11-21T09:40:15Z-
dc.date.issued2017-05-31-
dc.identifier.citationScientific Reports, 2017, vol. 7, no. 1en_US
dc.identifier.issn20452322-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/10544-
dc.description.abstractPhotosynthesis is common in nature, converting sunlight energy into proton motive force and reducing power. The increased spectral range absorption of light exerted by pigments (i.e. chlorophylls, Chls) within Light Harvesting Complexes (LHCs) proves an important advantage under low light conditions. However, in the exposure to excess light, oxidative damages and ultimately cell death can occur. A down-regulatory mechanism, thus, has been evolved (non-photochemical quenching, NPQ). The mechanistic details of its major component (qE) are missing at the atomic scale. The research herein, initiates on solid evidence from the current NPQ state of the art, and reveals a detailed atomistic view by large scale Molecular Dynamics, Metadynamics and ab initio Simulations. The results demonstrate a complete picture of an elaborate common molecular design. All probed antenna proteins (major LHCII from spinach-pea, CP29 from spinach) show striking plasticity in helix-D, under NPQ conditions. This induces changes in Qy bands in excitation and absorption spectra of the near-by pigment pair (Chl613-614) that could emerge as a new quenching site. Zeaxanthin enhances this plasticity (and possibly the quenching) even at milder NPQ conditions.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofScientific Reportsen_US
dc.rights© Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en_US
dc.subjectHigher-plantsen_US
dc.subjectGreen plantsen_US
dc.subjectPigment Bindingen_US
dc.subjectLight Harvesting Complexesen_US
dc.titleA pathway for protective quenching in antenna proteins of Photosystem IIen_US
dc.typeArticleen_US
dc.collaborationCyprus University of Technologyen_US
dc.subject.categoryOther Engineering and Technologiesen_US
dc.journalsOpen Accessen_US
dc.countryCyprusen_US
dc.subject.fieldEngineering and Technologyen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1038/s41598-017-02892-wen_US
dc.relation.issue1en_US
dc.relation.volume7en_US
cut.common.academicyear2016-2017en_US
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
item.openairetypearticle-
crisitem.journal.journalissn2045-2322-
crisitem.journal.publisherSpringer Nature-
crisitem.author.deptDepartment of Nursing-
crisitem.author.deptDepartment of Chemical Engineering-
crisitem.author.facultyFaculty of Health Sciences-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0003-4050-031X-
crisitem.author.orcid0000-0001-8870-0850-
crisitem.author.parentorgFaculty of Health Sciences-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
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