Thimet oligopeptidase (EC 3.4.24.15; EP24.15) is a thiol-rich metallopeptidase ubiquitously distributed in mammalian tissues and involved in oligopeptide metabolism both within and outside cells. Fifteen Cys residues are ...

Two highly similar plastidic NADP-malic enzymes (NADP-MEs) are found in the C 4 species maize (Zea mays); one exclusively expressed in the bundle sheath cells (BSCs) and involved in C 4 photosynthesis (ZmC 4-NADP-ME); and ...

The proteasome is a multimeric and multicatalytic intracellular protease responsible for the degradation of proteins involved in cell cycle control, various signaling processes, antigen presentation, and control of protein ...

Protein S-glutathionylation is a post-translational modification that controls many cellular pathways. Recently, we demonstrated that the α5-subunit of the 20S proteasome is S-glutathionylated in yeast cells grown to the ...

Protein S-glutathionylation is a post-translational modification that controls many cellular pathways. Recently, we demonstrated that the alpha 5-subunit of the 20S proteasome is S-glutathionylated in yeast cells grown to ...

Nitrate reductases are enzymes that catalyze the conversion of nitrate to nitrite. We report here electron paramagnetic resonance (EPR) studies in the periplasmic nitrate reductase isolated from the sulfate-reducing bacteria ...

2-Cys peroxiredoxins belonging to the Prx1 subfamily are Cys-based peroxidases that control the intracellular levels of H2O2 and seem to assume a chaperone function under oxidative stress conditions. The regulation of their ...

Peroxiredoxins (Prx) are enzymes that efficiently reduce hydroperoxides through active participation of cysteine residues (CP, CR). The first step in catalysis, the reduction of peroxide substrate, is fast, 107 - 108 M−1s−1 ...