Plant uncoupling mitochondrial proteins.
Annu Rev Plant Biol
; 57: 383-404, 2006.
Article
en En
| MEDLINE
| ID: mdl-16669767
ABSTRACT
Uncoupling proteins (UCPs) are membrane proteins that mediate purine nucleotide-sensitive free fatty acid-activated H(+) flux through the inner mitochondrial membrane. After the discovery of UCP in higher plants in 1995, it was acknowledged that these proteins are widely distributed in eukaryotic organisms. The widespread presence of UCPs in eukaryotes implies that these proteins may have functions other than thermogenesis. In this review, we describe the current knowledge of plant UCPs, including their discovery, biochemical properties, distribution, gene family, gene expression profiles, regulation of gene expression, and evolutionary aspects. Expression analyses and functional studies on the plant UCPs under normal and stressful conditions suggest that UCPs regulate energy metabolism in the cellular responses to stress through regulation of the electrochemical proton potential (Deltamu(H)+) and production of reactive oxygen species.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Plantas
/
Proteínas Mitocondriales
/
Canales Iónicos
/
Mitocondrias
Idioma:
En
Revista:
Annu Rev Plant Biol
Asunto de la revista:
BOTANICA
Año:
2006
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA