منابع مشابه
Free radical metabolites of L-cysteine oxidation.
The oxidation of L-cysteine by horseradish peroxidase in the presence of oxygen forms a thiyl free radical as demonstrated with the spin-trapping ESR technique. Reactions of this thiyl free radical result in oxygen consumption, which is inhibited by the spin trap 5,5'-dimethyl-1-pyrroline-N-oxide. Cysteine sulfinic acid, a cysteine metabolite, is a poorer substrate for horseradish peroxidase th...
متن کاملOrg . On Cysteine and Cystine Peptides . Part V . l S - Trityl - and S - Diphenyl - methyl - cysteine and - cysteine Peptides
A new method for the preparation of S-trityl(i.e. triphenylmethyl) and S-diphenylmethyl-cysteines or -cysteine peptides involves treatment of cysteine or cysteine peptides with aralkylcarbinols in the presence of trifluoroacetic acid or hydrogen halides in acetic acid solution. The optimal conditions for the removal of these S-protecting aralkyl groups by trifluoroacetic acid or hydrogen halide...
متن کاملThe sulphoxidation of S-carboxymethyl-L-cysteine in COPD.
patients with COPD. Thorax 2004; 59: 179. 7 Saetta M, Di Stefano A, Maestrelli P, et al. Airway eosinophilia in chronic bronchitis during exacerbations. Am J Respir Crit Care Med 1994; 150: 1646–1652. 8 Brightling CE, Monteiro W, Ward R, et al. Sputum eosinophilia and short-term response to prednisolone in chronic obstructive pulmonary disease: a randomised controlled trial. Lancet 2000; 356: 1...
متن کاملBlood dyscrasia in calves induced by S-(dichlorovinyl)-L-cysteine.
I N THEIR SEARCH for the toxic factor in trichloroethylene-extracted soybean oil meal which can induce fatal aplastic anemia in calves,”2 cattle,3 and horses,4 McKinney et al.5 synthesized S-( dichlorovinyl)-L-cysteine (DCVC). They reported that the oral administration of this compound to calves produced leukopenia, thrombocytopenia, a relative lymphocytosis and a hemorrhagic syndrome, conditio...
متن کاملEnhancement of thioredoxin/glutaredoxin-mediated L-cysteine synthesis from S-sulfocysteine increases L-cysteine production in Escherichia coli
BACKGROUND Escherichia coli has two L-cysteine biosynthetic pathways; one is synthesized from O-acetyl L-serine (OAS) and sulfate by L-cysteine synthase (CysK), and another is produced via S-sulfocysteine (SSC) from OAS and thiosulfate by SSC synthase (CysM). SSC is converted into L-cysteine and sulfite by an uncharacterized reaction. As thioredoxins (Trx1 and Trx2) and glutaredoxins (Grx1, Grx...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1970
ISSN: 0306-3283
DOI: 10.1042/bj1190051pa