Activation of translation via reduction by thioredoxin-thioredoxin reductase in Saccharomyces cerevisiae

Crystal structure of Saccharomyces cerevisiae cytoplasmic thioredoxin reductase Trr1 reveals the structural basis for species-specific recognition of thioredoxin.

Thioredoxin reductase (TrxR) is a member of the pyridine nucleotide-disulfide oxidoreductase family of the flavoenzymes. It can use a dithiol-disulfide active-site to transfer reducing equivalents from NADPH to thioredoxin (Trx), via the cofactor FAD. In Saccharomyces cerevisiae, the cytoplasmic thioredoxin reductase Trr1 plays an important role in multiple cellular events under the control of ...

Role of thioredoxin reductase in the Yap1p-dependent response to oxidative stress in Saccharomyces cerevisiae.

The Saccharomyces cerevisiae Yap1p transcription factor is required for the H2O2-dependent activation of many antioxidant genes including the TRX2 gene encoding thioredoxin 2. To identify factors that regulate Yap1p activity, we carried out a genetic screen for mutants that show elevated expression of a TRX2-HIS3 fusion in the absence of H2O2. Two independent mutants isolated in this screen car...

Cloning of thioredoxin h reductase and characterization of the thioredoxin reductase-thioredoxin h system from wheat.

Thioredoxins h are ubiquitous proteins reduced by NADPH- thioredoxin reductase (NTR). They are able to reduce disulphides in target proteins. In monocots, thioredoxins h accumulate at high level in seeds and show a predominant localization in the nucleus of seed cells. These results suggest that the NTR-thioredoxin h system probably plays an important role in seed physiology. To date, the study...

Regulation of the thioredoxin system in Saccharomyces cerevisiae

Crystallization and preliminary X-ray diffraction analysis of NADPH-dependent thioredoxin reductase I from Saccharomyces cerevisiae.

Thioredoxin reductase 1 (Trr1) from Saccharomyces cerevisiae is a member of the family of pyridine nucleotide-disulfide oxidoreductases capable of reducing the redox-active disulfide bond of the cytosolic thioredoxin 1 (Trx1) and thioredoxin 2 (Trx2). NADPH, Trr1 and Trx1 (or Trx2) comprise the thioredoxin system, which is involved in several biological processes, including the reduction of dis...