English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/10943
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 17 veces en Web of Knowledge®  |  Pub MebCentral Ver citas en PubMed Central  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar bibText (RIS)Exportar csv (RIS)
Título

Respiratory cytochrome c oxidase can be efficiently reduced by the photosynthetic redox proteins cytochrome c6 and plastocyanin in cyanobacteria

AutorNavarro, José A. ; Durán, Raúl V.; Rosa, Miguel A. de la ; Hervás, Manuel
Palabras claveCyanobacteria
Cytochrome c6
Cytochrome c oxidase
Photosynthesis
Plastocyanin
Respiration
Fecha de publicación4-jun-2005
EditorElsevier
CitaciónFEBS Letters 579(17): 3565-3568 (2005)
ResumenPlastocyanin and cytochrome c6 are two small soluble electron carriers located in the intrathylacoidal space of cyanobacteria. Although their role as electron shuttle between the cytochrome b6f and photosystem I complexes in the photosynthetic pathway is well established, their participation in the respiratory electron transport chain as donors to the terminal oxidase is still under debate. Here, we present the first time-resolved analysis showing that both cytochrome c6 and plastocyanin can be efficiently oxidized by the aa3 type cytochrome c oxidase in Nostoc sp. PCC 7119. The apparent electron transfer rate constants are ca. 250 and 300 s−1 for cytochrome c6 and plastocyanin, respectively. These constants are 10 times higher than those obtained for the oxidation of horse cytochrome c by the oxidase, in spite of being a reaction thermodynamically more favourable.
Descripción4 pages.-- PMID: 15963511 [PubMed].-- Printed version published on Jul 4, 2005.
Versión del editorhttp://dx.doi.org/10.1016/j.febslet.2005.05.034
URIhttp://hdl.handle.net/10261/10943
DOI10.1016/j.febslet.2005.05.034
ISSN0014-5793
Aparece en las colecciones: (IBVF) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.