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The reactions of the sulfur-containing amino acids with phosphoric and sulfuric acids
Archives of Biochemistry and Biophysics, 1951Abstract Both cystine and cysteine react very differently toward 6.0 M phosphoric and sulfuric acids. With phosphoric acid, extensive decomposi tion occurs; with sulfuric acid, very little. Cystine, in phosphoric acid at 100 °C. produces hydrogen sulfide, free sulfur, cysteic acid, ammonia, alanine, serine, and pyruvic acid.
J C, ANDREWS, R B, BRUCE
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Microbial sulfur amino acids: An overview
1987Publisher Summary This chapter presents an overview microbial sulfur amino acids. Various microorganisms assimilate inorganic sulfur to synthesize sulfur amino acids. Hydrogen sulfide, the final product of bacterial sulfate reduction, reacts microbially with serine and homoserine to form cysteine and homocysteine, respectively. Cysteine, homocysteine,
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Methods for measuring sulfur amino acid metabolism
Current Opinion in Clinical Nutrition and Metabolic Care, 2002The importance of sulfur amino acid metabolism has become increasingly apparent in recent years. Methionine and cysteine are precursors of glutathione, which plays an important role in intracellular antioxidant/free radical defenses. Homocysteine is a non-protein-bound sulfur amino acid strongly implicated in the pathogenesis of several diseases.
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The Oxidation of Sulfur-Containing Amino Acids by L-Amino Acid Oxidases
1982L-amino acid oxidase (LAO) from various sources is known to act on most of natural and unnatural amino acids of the L configuration (1). Among the sulfur containing amino acids, apart methionine which is known since long time as one of the best substrates for this enzyme, cystine (2), homocystine (3) and thialysine (4) have also been found more ...
D, Cavallini +6 more
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Disorders of Sulfur Amino Acids
2003The sulfur amino acids are methionine, homocysteine, cystathionine, cyst(e)ine, and taurine. Defects in several of the enzymatic steps of their metabolism are known; some, but not all, result in human disease. The remethylation of homocysteine to methionine is closely dependent on folate and cobalamin cofactors, and relevant defects of their metabolism
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Mammalian sulfur amino acid metabolism: An overview
1987Publisher Summary This chapter briefly summarizes the mammalian metabolism of methionine and cysteine with emphasis on the chemical transformations of sulfur. Methionine and cysteine, the two sulfur-containing protein amino acids, are metabolized by a variety of reactions and pathways to at least two dozen intermediates and products.
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Excitatory Amino Acid Receptor Potency and Subclass Specificity of Sulfur‐Containing Amino Acids
Journal of Neurochemistry, 1987Abstract: The sulfur‐containing amino acids, l‐and d‐cysteate, l‐cysteine, l‐and d‐cysteine sulfinate, l‐and d‐cysteine‐S‐sulfate, l‐cystine, l‐and d‐homocysteate, l‐and d‐homocysteine sulfinate, l‐homocysteine, l‐serine‐O‐sulfate, and taurine were tested in two excitatory amino acid receptor functional assays and in receptor binding assays designed ...
L M, Pullan +6 more
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Amino Acids | Sulfur Amino Acid Metabolism
2021Cynthia K. Holland, Soon Goo Lee
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Formulating energy density for designing practical lithium–sulfur batteries
Nature Energy, 2022Guangmin Zhou, Hao Chen
exaly