Gibberellic acid-stimulated Arabidopsis (GASA) gene family is a class of functional cysteine-rich proteins characterized by an N-terminal signal peptide and C-terminal-conserved GASA domain with 12 invariant cysteine (Cys) residues. are widely distributed among plant species, the majority them involved in transmission hormones, regulation development growth, responses to different environmental...

In this review, we analyse and discuss 60+ individual cysteine protecting groups reported over the past several decades, highlighting their applications in peptide synthesis protein science.

The metabolism of L-cysteine in guinea pig liver was studied. Guinea pig liver contained 0.45 +/- 0.05 (mean +/- SD) mumol of cysteine, 0.180 +/- 0.080 mumol of 3-mercaptolactate-cysteine disulfide [S-(2-hydroxy-2-carboxyethylthio)cysteine, HCETC], and 8.082 +/- 0.516 mumol of reduced glutathione per g of fresh tissue. The taurine content was 0.912 +/- 0.158 mumol per g of fresh liver. Cysteine...

Cysteine synthase catalyzes the formation of cysteine from O-acetylserine, and is the key enzyme for de novo cysteine biosynthesis in Schizosaccharomyces pombe. An examination of the S. pombe database revealed that two gene products are predicted to encode proteins homologous to eukaryotic cysteine synthases. Disruption of one of these candidates, cys1a+ (SPBC36.04), caused an obvious cysteine ...

Membrane fractions o f the cyanobacterium Synechococcus 6301 obtained by french press treatment following sonication catalyzed an oxygen-dependent oxydation o f cysteine to cystine. For 1 0 2 consumed four cysteine were oxydized. Oxygen uptake was com pletely inhibited by 1 mM KCN. Only Dand L-cysteine were active and partial activity was observed with DL-homocysteine and cysteamine. N o activi...

Balb/cA mice were used to study the in vivo effect of N-acetyl cysteine, S-allyl cysteine, S-ethyl cysteine, S-methyl cysteine and S-propyl cysteine, all derived from garlic, on glutathione (GSH) concentration and catalase and glutathione peroxidase (GPX) activities in plasma, kidney and liver. Cysteine was used for comparison. The effects of these compounds on the levels of fibronectin, trigly...