Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin)

Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin)

Resumen del trabajo presentado en el International Congress on Photosynthesis Research, Photosynthesis Research - Fundamental and Applied Science for Energy and Food Security, celebrado en Dunedin (Nueva Zelanda), del 31 de julio al 5 de agosto de 2022

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Main Authors: Castell, Carmen, Roncel Gil, Mercedes, Hervás, Manuel, Fernández-Recio, Juan, Navarro, José A.
Other Authors: Ministerio de Ciencia, Innovación y Universidades (España)
Format: comunicación de congreso biblioteca
Published: 2022-07-31
Online Access:http://hdl.handle.net/10261/283855
http://dx.doi.org/10.13039/501100011033
http://dx.doi.org/10.13039/501100000780
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spelling dig-icvv-es-10261-2838552022-11-26T02:40:02Z Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin) Castell, Carmen Roncel Gil, Mercedes Hervás, Manuel Fernández-Recio, Juan Navarro, José A. Ministerio de Ciencia, Innovación y Universidades (España) Agencia Estatal de Investigación (España) European Commission Resumen del trabajo presentado en el International Congress on Photosynthesis Research, Photosynthesis Research - Fundamental and Applied Science for Energy and Food Security, celebrado en Dunedin (Nueva Zelanda), del 31 de julio al 5 de agosto de 2022 In the red lineage of photosynthetic organisms, the coastal diatom Phaeodactylum tricornutum contains cytochrome c6 as the only electron carrier between cytochrome b6f and photosystem I. However, in the oceanic diatom Thalassiosira oceanica, a functional plastocyanin has been described to act as the main electron carrier, replacing cytochrome c6 and thus decreasing the cell¿s iron requirements. T. oceanica plastocyanin seems to have been acquired by lateral gene transfer from a green alga and, consequently, shows the typical strong negative electrostatics of a ¿green-type¿ plastocyanin. We have carried out docking simulations to study the [cytochrome f:acceptor] complex in P. tricornutum and T. oceanica by using the pyDock docking protocol. The best docking model of the [cytochrome f:cytochrome c6] complex of P. tricornutum has a different orientation compared with the equivalent ¿side-on¿ complex of green algae, that involves both the large and small domains of cytochrome f. Thus, the P. tricornutum complex shows a ¿head-on¿ orientation, more similar to that described previously in cyanobacteria, in which the small domain of cytochrome f does not play a relevant role. In addition, docking models indicate that the [cytochrome f:plastocyanin] complex of T. oceanica shows a much larger population of low-energy docking orientations compared to the P. tricornutum complex, suggesting that the acquired green-type plastocyanin of T. oceanica would not have yet achieved a prevalent configuration optimized for electron transfer. Grants PID2020-112645GB-I00 (Ministry of Economy, Industry and Competitiveness of Spain) and US-1380339 (Andalusian FEDER Program) 2022-11-25T12:30:02Z 2022-11-25T12:30:02Z 2022-07-31 2022-11-25T12:30:02Z comunicación de congreso International Congress on Photosynthesis Research, Photosynthesis Research - Fundamental and Applied Science for Energy and Food Security (2022) http://hdl.handle.net/10261/283855 http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100000780 #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112645GB-I00/ES/MECANISMOS DE HOMEOSTASIS DE METALES EN CIANOBACTERIAS/ Sí open
institution ICVV ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icvv-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICVV España
description Resumen del trabajo presentado en el International Congress on Photosynthesis Research, Photosynthesis Research - Fundamental and Applied Science for Energy and Food Security, celebrado en Dunedin (Nueva Zelanda), del 31 de julio al 5 de agosto de 2022
author2 Ministerio de Ciencia, Innovación y Universidades (España)
author_facet Ministerio de Ciencia, Innovación y Universidades (España)
Castell, Carmen
Roncel Gil, Mercedes
Hervás, Manuel
Fernández-Recio, Juan
Navarro, José A.
format comunicación de congreso
author Castell, Carmen
Roncel Gil, Mercedes
Hervás, Manuel
Fernández-Recio, Juan
Navarro, José A.
spellingShingle Castell, Carmen
Roncel Gil, Mercedes
Hervás, Manuel
Fernández-Recio, Juan
Navarro, José A.
Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin)
author_sort Castell, Carmen
title Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin)
title_short Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin)
title_full Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin)
title_fullStr Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin)
title_full_unstemmed Modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms Phaeodactylum tricornutum (containing cytochrome c6) and Thalassiosira oceanica (containing plastocyanin)
title_sort modelling of the [cytochrome f:acceptor] electron transfer complexes of diatoms phaeodactylum tricornutum (containing cytochrome c6) and thalassiosira oceanica (containing plastocyanin)
publishDate 2022-07-31
url http://hdl.handle.net/10261/283855
http://dx.doi.org/10.13039/501100011033
http://dx.doi.org/10.13039/501100000780
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AT roncelgilmercedes modellingofthecytochromefacceptorelectrontransfercomplexesofdiatomsphaeodactylumtricornutumcontainingcytochromec6andthalassiosiraoceanicacontainingplastocyanin
AT hervasmanuel modellingofthecytochromefacceptorelectrontransfercomplexesofdiatomsphaeodactylumtricornutumcontainingcytochromec6andthalassiosiraoceanicacontainingplastocyanin
AT fernandezreciojuan modellingofthecytochromefacceptorelectrontransfercomplexesofdiatomsphaeodactylumtricornutumcontainingcytochromec6andthalassiosiraoceanicacontainingplastocyanin
AT navarrojosea modellingofthecytochromefacceptorelectrontransfercomplexesofdiatomsphaeodactylumtricornutumcontainingcytochromec6andthalassiosiraoceanicacontainingplastocyanin
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