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Type: Artigo de periódico
Title: Plant Uncoupling Mitochondrial Proteins.
Author: Vercesi, Aníbal Eugênio
Borecký, Jiri
Maia, Ivan de Godoy
Arruda, Paulo
Cuccovia, Iolanda Midea
Chaimovich, Hernan
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.
Subject: Amino Acid Sequence
Energy Metabolism
Ion Channels
Mitochondrial Proteins
Molecular Sequence Data
Reactive Oxygen Species
Citation: Annual Review Of Plant Biology. v. 57, p. 383-404, 2006.
Rights: fechado
Identifier DOI: 10.1146/annurev.arplant.57.032905.105335
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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