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TranscriptomicsDepleting cytosolic cysteine compromises the antioxidant capacity of the cytosol in Arabidopsis thaliana
Plant cells contain different O-acetylserine(thiol)lyase (OASTL) enzymes involved in Cys biosynthesis and located in different subcellular compartments. These enzymes are made up of a complex variety of isoforms resulting in different subcellular Cys pools. To unravel the contribution of cytosolic C...
ORGANISM(S): Arabidopsis thaliana 
2010-10-01 | E-GEOD-19245 | biostudies-arrayexpress
TranscriptomicsA novel S-sulfocysteine synthase essential for chloroplast function in Arabidopsis thaliana
In bacteria, the biosynthesis of cysteine is accomplished by two enzymes that are encoged by the cysK and cysM genes. CysM is also able to incorporate thiosulfate to produce S-sulfocysteine. In plant cells, the biosynthesis of cysteine occurs in the cytosol, mitochondria and chloroplasts. Chloroplas...
ORGANISM(S): Arabidopsis thaliana 
2010-04-12 | E-GEOD-19241 | biostudies-arrayexpress
TranscriptomicsExogenous Sulfide Reverses the Alteration of Transcriptional Profiling of the des1-1 Mutant (Arabidopsis thaliana)
Arabidopsis thaliana cells contain different O-acetylserine(thiol)lyase (OASTL) enzymes that catalyze the biosynthesis of cysteine. Recently, we have deeply investigated about one of the minor OASTL-like protein located in the cytosol, named DES1, highlighting some important clues about its metaboli...
ORGANISM(S): Arabidopsis thaliana 
2013-04-25 | E-GEOD-32566 | biostudies-arrayexpress
TranscriptomicsAn O-acetylserine(thiol)lyase homolog regulates cysteine homeostasis in Arabidopsis thaliana
Cysteine occupies a central position in plant metabolism due to its biochemical functions. Arabidopsis thaliana cells contain different O-acetylserine(thiol)lyase (OASTL) enzymes that catalyze the biosynthesis of cysteine. Because they are localized in the cytosol, plastids and mitochondria, this re...
ORGANISM(S): Arabidopsis thaliana 
2011-11-23 | E-GEOD-19244 | biostudies-arrayexpress
TranscriptomicsMitochondrial beta-cyanoalanine synthase is essential for root hair formation in Arabidopsis thaliana
Cyanide is stoichiometrically produced as a co-product of the ethylene biosynthesis pathway, and it is detoxified by the b-cyanoalanine synthase enzyme. The molecular and phenotypical analysis of T-DNA insertional mutants of the mitochondrial b-cyanoalanine synthase CYS-C1 suggests that discrete acc...
ORGANISM(S): Arabidopsis thaliana 
2010-10-01 | E-GEOD-19242 | biostudies-arrayexpress
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