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Cytosolic cysteine in redox signaling

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 2008 Spain Publisher:Informa UK LimitedJournal:Plant Signaling & Behavior, volume 3, pages 880-881 (eissn: 1559-2324,

Authors: López-Martín, M. Carmen; Romero, Luis C.; Gotor, Cecilia;

doi: 10.4161/psb.3.10.6289

pmid: 19704851

pmc: PMC2637515

handle: 10261/10337

Cytosolic cysteine in redox signaling

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Abstract

CYSTEINE BIOSYNTHESIS IN PLANTS TAKES PLACE IN THE THREE CELLULAR COMPARTMENTS WITH AUTONOMOUS PROTEIN BIOSYNTHESIS MACHINERY: cytosol, plastids and mitochondria. This sulfur-containing molecule is synthesized sequentially in these compartments by two enzymatic families, the serine acetyltransferases and the O-acetylserine(thiol) lyases. Each family consists of several isoforms that differ in subcellular localization and abundance. Why so many isoforms are required in plant cell for cysteine biosynthesis has remained unknown to date. The characterization of gene-specific knockout mutants has started to address this question. In our recent work, we have performed a detailed analysis of the Arabidopsis oas-a1 null mutant and showed that the antioxidant capacity of the cytosol is compromised, highlighting the contribution of cytosolic Cys in redox signaling.

Country

Spain

Related Organizations

Institute of Plant Biochemistry and Photosynthesis
Spain
Spanish National Research Council
Spain
Superior University
Pakistan
University of Seville
Spain

Keywords

Redox regulation, Arabidopsis, O-acetylserine(thiol)lyase, Cysteine biosynthesis

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	21
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%