Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/32574
DC Field | Value | Language |
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dc.contributor.author | Andreou, Charalampos | - |
dc.contributor.author | Tselios, Charalampos | - |
dc.contributor.author | Ioannou, Aristos | - |
dc.contributor.author | Varotsis, Constantinos | - |
dc.date.accessioned | 2024-06-14T08:08:15Z | - |
dc.date.available | 2024-06-14T08:08:15Z | - |
dc.date.issued | 2023-10-26 | - |
dc.identifier.citation | The journal of physical chemistry. B, 2023, vol. 127, iss. 42, pp. 9014–9020 | en_US |
dc.identifier.issn | 15206106 | - |
dc.identifier.uri | https://hdl.handle.net/20.500.14279/32574 | - |
dc.description.abstract | We report resonance Raman spectra of the light-harvesting fucoxanthin-chlorophyll a/c-binding proteins (FCPs) of marine diatom Fragilariopsis sp. The Raman shifts in the 15N-isotope-enriched diatom provide the first spectroscopic evidence for the characterization of the Ca-N marker bands and, thus, of the penta- and hexacoordinated states of chlorophylls a/c in the FCPs. Under 405 and 442 nm Raman excitations, all of the marker bands of Chl a/c are observed and the isotope-based assignments provide new information concerning the structure of Chls a/c in the FCPs and their interactions with the protein environment. Therefore, the Raman spectrum at 405 nm originates from the π-π* transitions of Chl a/c and not from a different, non π-π* electronic transition, as previously reported (BBA Bioenergetics, 2010, 1797, 1647-1656). Based on the 15N isotope shifts of the Ca-N and in conjunction with other marker bands, two distinct conformations of five- and six-coordinated Chl a and Chl c are observed. In addition, two keto carbonyls were observed at 1679 (strong H-bonded) and 1691 cm-1 (weak H-bonded) in both the 405 and 442 nm Raman spectra, respectively. Collectively, the results provide solid evidence of the nature of the vibrational modes of the active Chl a/c photosynthetic pigments in the FCPs. | en_US |
dc.format | en_US | |
dc.language.iso | en | en_US |
dc.relation.ispartof | The Journal of Physical Chemistry B | en_US |
dc.rights | CC-BY 4.0. | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Probing the Fucoxanthin-Chlorophyll a/c-Binding Proteins (FCPs) of the Marine Diatom Fragilariopsis sp. by Resonance Raman Spectroscopy | en_US |
dc.type | Article | en_US |
dc.collaboration | Cyprus University of Technology | en_US |
dc.subject.category | Chemical Engineering | en_US |
dc.journals | Open Access | en_US |
dc.country | Cyprus | en_US |
dc.subject.field | Engineering and Technology | en_US |
dc.publication | Peer Reviewed | en_US |
dc.identifier.doi | 10.1021/acs.jpcb.3c04346 | en_US |
dc.identifier.pmid | 37819729 | - |
dc.identifier.scopus | 2-s2.0-85175271315 | - |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85175271315 | - |
dc.relation.issue | 42 | en_US |
dc.relation.volume | 127 | en_US |
cut.common.academicyear | 2023-2024 | en_US |
dc.identifier.spage | 9014 | en_US |
dc.identifier.epage | 9020 | en_US |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
crisitem.journal.journalissn | 1520-5207 | - |
crisitem.journal.publisher | American Chemical Society | - |
crisitem.author.dept | Department of Chemical Engineering | - |
crisitem.author.dept | Department of Chemical Engineering | - |
crisitem.author.faculty | Faculty of Geotechnical Sciences and Environmental Management | - |
crisitem.author.faculty | Faculty of Geotechnical Sciences and Environmental Management | - |
crisitem.author.orcid | 0000-0003-1884-0529 | - |
crisitem.author.orcid | 0000-0003-2771-8891 | - |
crisitem.author.parentorg | Faculty of Geotechnical Sciences and Environmental Management | - |
crisitem.author.parentorg | Faculty of Geotechnical Sciences and Environmental Management | - |
Appears in Collections: | Άρθρα/Articles |
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andreou-et-al-2023-probing-the-fucoxanthin-chlorophyll-a-c-binding-proteins-(fcps)-of-the-marine-diatom-fragilariopsis.pdf | Open Access | 4.98 MB | Adobe PDF | View/Open |
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