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S nitrosylation mediated signalling during the response to different stresses A...

S nitrosylation mediated signalling during the response to different stresses A proteomic based approach for functional characterization of leaf peroxisome S nitrosylatied proteins Peroxisomes are organelles that have an essentially oxidative type of metabolism. In plant peroxisomes the presence of proteases and a set of antioxidative enzymes have been demonstrated. In addition, the presence of nitric oxide... ver más

31/10/2010

CSIC

45K€

Presupuesto del proyecto: 45K€

Líder del proyecto

AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGA... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 2-3 | 552M€

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo FP7 notifico la concesión del proyecto el día 2010-10-31 No tenemos la información de la convocatoria

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No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

CSIC

0.00€ | Lider

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Líder del proyecto

AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGA... No se ha especificado una descripción o un objeto social para esta compañía.

TRL 2-3 | 552M€

Presupuesto del proyecto 45K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Peroxisomes are organelles that have an essentially oxidative type of metabolism. In plant peroxisomes the presence of proteases and a set of antioxidative enzymes have been demonstrated. In addition, the presence of nitric oxide synthase suggests that they are a cellular source of NO and adds new cellular functions to peroxisomes related to oxygen and nitrogen reactive species as they have the capacity to generate and release into the cytosol important signal molecules. The study of the regulation of these molecules that could mediate the inter-organellar communication is an important emerging area in plant research, which can supply more information on peroxisomal contribution throughout plant development and in plant response to different stress condition. Recent evidences indicate that in animal tissues NO regulates diverse biologic processes by directly modifying proteins. NO and RNS can oxidize, nitrate or nitrosylate proteins. S-nitrosylation refers to the binding of a NO group to a cysteine residue and it could play a central role in NO-mediated signalling. Accumulating data suggest that many proteins are S-nitrosylated by NO indicating that S-nitrosylation may be a ubiquitous post-translational modification regulating protein function. It has been shown that S-nitrosylation plays a comparable role to phosphorylation in animal cell biology and signal transduction. However, very little is known about the dimension of the physiological function of S-nitrosylation in plants. The aim of the proposed project is to assess the occurrence of S-nitrosylation in plant peroxisomes, with the identification and functional characterization of the NO-target proteins. Additionally, we propose the study of the changes in the pattern of S-nitrosylated proteins during different stress conditions that will help us to understand the functional consequences and the relevance of S-nitrosylation and the role of peroxisomes in physiological and pathophysiological conditions.

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