Intracellular localization of VDAC proteins in plants.
Planta
; 220(1): 30-7, 2004 Nov.
Article
em En
| MEDLINE
| ID: mdl-15258762
ABSTRACT
Voltage-dependent anion channels (VDACs) are porin-type beta-barrel diffusion pores. They are prominent in the outer membrane of mitochondria and facilitate metabolite exchange between the organelle and the cytosol. Here we studied the subcellular distribution of a plant VDAC-like protein between plastids and mitochondria in green and non-green tissue. Using in vitro studies of dual-import into mitochondria and chloroplasts as well as transient expression of fluorescence-labeled polypeptides, it could be clearly demonstrated that this VDAC isoform targets exclusively to mitochondria and not to plastids. Our results support the idea that plastids evolved a concept of solute exchange with the cytosol different from that of mitochondria.
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Base de dados:
MEDLINE
Assunto principal:
Porinas
/
Pisum sativum
/
Mitocôndrias
Idioma:
En
Ano de publicação:
2004
Tipo de documento:
Article