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Arabidopsis calcium-binding mitochondrial carrier proteins as potential facilitators of mitochondrial ATP-import and plastid SAM-import.
Stael, Simon; Rocha, Agostinho G; Robinson, Alan J; Kmiecik, Przemyslaw; Vothknecht, Ute C; Teige, Markus.
Afiliación
  • Stael S; Department of Biochemistry and Cell Biology, MFPL, University of Vienna, Vienna, Austria.
FEBS Lett ; 585(24): 3935-40, 2011 Dec 15.
Article en En | MEDLINE | ID: mdl-22062157
Chloroplasts and mitochondria are central to crucial cellular processes in plants and contribute to a whole range of metabolic pathways. The use of calcium ions as a secondary messenger in and around organelles is increasingly appreciated as an important mediator of plant cell signaling, enabling plants to develop or to acclimatize to changing environmental conditions. Here, we have studied the four calcium-dependent mitochondrial carriers that are encoded in the Arabidopsis genome. An unknown substrate carrier, which was previously found to localize to chloroplasts, is proposed to present a calcium-dependent S-adenosyl methionine carrier. For three predicted ATP/phosphate carriers, we present experimental evidence that they can function as mitochondrial ATP-importers.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: S-Adenosilmetionina / Proteínas de Unión al Calcio / Adenosina Trifosfato / Arabidopsis / Plastidios / Mitocondrias Tipo de estudio: Prognostic_studies Idioma: En Revista: FEBS Lett Año: 2011 Tipo del documento: Article País de afiliación: Austria

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: S-Adenosilmetionina / Proteínas de Unión al Calcio / Adenosina Trifosfato / Arabidopsis / Plastidios / Mitocondrias Tipo de estudio: Prognostic_studies Idioma: En Revista: FEBS Lett Año: 2011 Tipo del documento: Article País de afiliación: Austria