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Signaling in the plant cytosol: cysteine or sulfide?

Opened Access Signaling in the plant cytosol: cysteine or sulfide?


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Autor: Gotor, Cecilia
Laureano Marín, Ana M.
Moreno, Inmaculada
Aroca, Ángeles
García, Irene
Romero, Luis C.
Fecha: 2015
Publicado en: Amino Acids, 47, 2155-2164.
Tipo de documento: Artículo
Resumen: Cysteine (Cys) is the first organic compound containing reduced sulfur that is synthesized in the last stage of plant photosynthetic assimilation of sulfate. It is a very important metabolite not only because it is crucial for the structure, function and regulation of proteins but also because it is the precursor molecule of an enormous number of sulfur-containing metabolites essential for plant health and development. The biosynthesis of Cys is accomplished by the sequential reaction of serine acetyltransferase (SAT) and O-acetylserine(thiol)synthase (OASTL). In Arabidopsis thaliana, the analysis of specific mutants of members of the SAT and OASTL families has demonstrated that the cytosol is the compartment where the bulk of Cys synthesis takes place and that the cytosolic OASTL enzyme OAS-A1 is the responsible enzyme. Another member of the OASTL family is DES1, a novel L-cysteine desulfhydrase that catalyzes the desulfuration of Cys to produce sulfide, thus acting in a manner oppos...
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Cita: Gotor, C., Laureano Marín, A.M., Moreno, I., Aroca, Á., García, I. y Romero, L.C. (2015). Signaling in the plant cytosol: cysteine or sulfide?. Amino Acids, 47, 2155-2164.
Tamaño: 492.1Kb
Formato: PDF


DOI: 10.1007/s00726-014-1786-z

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