Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119

Most organisms performing oxygenic photosynthesis contain either cytochrome c 6 or plastocyanin, or both, to transfer electrons from cytochrome b 6-f to photosystem I. Even though plastocyanin has superseded cytochrome c 6 along evolution, plants contain a modified cytochrome c 6, the so called cyto...

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Autores: Reyes Sosa, Francisco Manuel, Gil Martínez, Jorge, Molina Heredia, Fernando Publio
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2011
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/84573
Acceso en línea:https://hdl.handle.net/11441/84573
https://doi.org/10.1007/s11120-011-9694-5
Access Level:acceso abierto
Palabra clave:Cytochrome c 6-like protein
Cytochrome c 6A
Biohydrogen
Photosystem I
Spectroscopy
Laser flash spectroscopy
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spelling Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119Reyes Sosa, Francisco ManuelGil Martínez, JorgeMolina Heredia, Fernando PublioCytochrome c 6-like proteinCytochrome c 6ABiohydrogenPhotosystem ISpectroscopyLaser flash spectroscopyMost organisms performing oxygenic photosynthesis contain either cytochrome c 6 or plastocyanin, or both, to transfer electrons from cytochrome b 6-f to photosystem I. Even though plastocyanin has superseded cytochrome c 6 along evolution, plants contain a modified cytochrome c 6, the so called cytochrome c 6A, whose function still remains unknown. In this article, we describe a second cytochrome c 6 (the so called cytochrome c 6-like protein), which is found in some cyanobacteria but is phylogenetically more related to plant cytochrome c 6A than to cyanobacterial cytochrome c 6. In this article, we conclude that the cytochrome c 6-like protein is a putative electron donor to photosystem I, but does play a role different to that of cytochrome c 6 and plastocyanin as it cannot accept electrons from cytochrome f. The existence of this third electron donor to PSI could explain why some cyanobacteria are able to grow photoautotrophically in the absence of both cytochrome c 6 and plastocyanin. In any way, the Cyt c 6-like protein from Nostoc sp. PCC 7119 would be potentially utilized for the biohydrogen production, using cell-free photosystem I catalytic nanoparticles.Dirección General de Investigación Científica y Técnica BFU2006-01361/BMCJunta de Andalucía PAI BIO022 BIO198Springer VerlagBioquímica Vegetal y Biología Molecular2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/84573https://doi.org/10.1007/s11120-011-9694-5reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésPhotosynthesis Research, 110, 61-72.BFU2006-01361/BMCPAIBIO022BIO198http://dx.doi.org/10.1007/s11120-011-9694-5info:eu-repo/semantics/openAccessoai:idus.us.es:11441/845732026-06-17T12:51:07Z
dc.title.none.fl_str_mv Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119
title Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119
spellingShingle Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119
Reyes Sosa, Francisco Manuel
Cytochrome c 6-like protein
Cytochrome c 6A
Biohydrogen
Photosystem I
Spectroscopy
Laser flash spectroscopy
title_short Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119
title_full Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119
title_fullStr Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119
title_full_unstemmed Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119
title_sort Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119
dc.creator.none.fl_str_mv Reyes Sosa, Francisco Manuel
Gil Martínez, Jorge
Molina Heredia, Fernando Publio
author Reyes Sosa, Francisco Manuel
author_facet Reyes Sosa, Francisco Manuel
Gil Martínez, Jorge
Molina Heredia, Fernando Publio
author_role author
author2 Gil Martínez, Jorge
Molina Heredia, Fernando Publio
author2_role author
author
dc.contributor.none.fl_str_mv Bioquímica Vegetal y Biología Molecular
dc.subject.none.fl_str_mv Cytochrome c 6-like protein
Cytochrome c 6A
Biohydrogen
Photosystem I
Spectroscopy
Laser flash spectroscopy
topic Cytochrome c 6-like protein
Cytochrome c 6A
Biohydrogen
Photosystem I
Spectroscopy
Laser flash spectroscopy
description Most organisms performing oxygenic photosynthesis contain either cytochrome c 6 or plastocyanin, or both, to transfer electrons from cytochrome b 6-f to photosystem I. Even though plastocyanin has superseded cytochrome c 6 along evolution, plants contain a modified cytochrome c 6, the so called cytochrome c 6A, whose function still remains unknown. In this article, we describe a second cytochrome c 6 (the so called cytochrome c 6-like protein), which is found in some cyanobacteria but is phylogenetically more related to plant cytochrome c 6A than to cyanobacterial cytochrome c 6. In this article, we conclude that the cytochrome c 6-like protein is a putative electron donor to photosystem I, but does play a role different to that of cytochrome c 6 and plastocyanin as it cannot accept electrons from cytochrome f. The existence of this third electron donor to PSI could explain why some cyanobacteria are able to grow photoautotrophically in the absence of both cytochrome c 6 and plastocyanin. In any way, the Cyt c 6-like protein from Nostoc sp. PCC 7119 would be potentially utilized for the biohydrogen production, using cell-free photosystem I catalytic nanoparticles.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/84573
https://doi.org/10.1007/s11120-011-9694-5
url https://hdl.handle.net/11441/84573
https://doi.org/10.1007/s11120-011-9694-5
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Photosynthesis Research, 110, 61-72.
BFU2006-01361/BMC
PAI
BIO022
BIO198
http://dx.doi.org/10.1007/s11120-011-9694-5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer Verlag
publisher.none.fl_str_mv Springer Verlag
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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