Results 301 to 310 of about 827,600 (338)
Some of the next articles are maybe not open access.
Journal of Structural Chemistry, 2023
The formation of salts in the l-cysteine–HNO3–H2O system was studied yielding three representatives as single crystals: anhydrous l-cysteinium nitrate (l-CysH)NO3 (I) and two new salts (l-CysH···l-Cys)NO3 (II) and (l-CysH···l-Cys)NO3∙0.5H2O (III) with the dimeric (l-CysH···l-Cys) cation.
Giester, G. +4 more
openaire +3 more sources
The formation of salts in the l-cysteine–HNO3–H2O system was studied yielding three representatives as single crystals: anhydrous l-cysteinium nitrate (l-CysH)NO3 (I) and two new salts (l-CysH···l-Cys)NO3 (II) and (l-CysH···l-Cys)NO3∙0.5H2O (III) with the dimeric (l-CysH···l-Cys) cation.
Giester, G. +4 more
openaire +3 more sources
Biosynthesis of Cysteine [PDF]
EcoSal Plus, 2008 The synthesis of L-cysteine from inorganic sulfur is the predominant mechanism by which reduced sulfur is incorporated into organic compounds. L-cysteineis used for protein and glutathione synthesis and serves as the primary source of reduced sulfur in L-methionine, lipoic acid, thiamin, coenzyme A (CoA), molybdopterin, and other organic ...
openaire +2 more sources
The Mechanism of Cysteine Oxygenation by Cysteine Dioxygenase Enzymes
Journal of the American Chemical Society, 2007We present here the first density functional theoretic study into the mechanism of cysteine dioxygenation by a model of cysteine dioxygenase enzymes. A large active site model containing the ligands bound to iron plus amino acid residues that are involved in hydrogen bonding interactions with the substrate is used.
Aluri, Swathi, De Visser, Sam P.
openaire +4 more sources
Journal of the Chemical Society C: Organic, 1970
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.
J. Taylor-Papadimitriou +4 more
openaire +3 more sources
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.
J. Taylor-Papadimitriou +4 more
openaire +3 more sources
Cysteine-S-sulphonate as an Intermediate in Microbial Synthesis of Cysteine
Nature, 1960THE synthesis of cysteine in micro-organisms from inorganic sulphur sources has been studied for some time, and the available evidence suggests that sulphate sulphur is reduced to the thiosulphate or sulphide state prior to its introduction into the carbon chain of cysteine1–3, although some investigators have postulated that the formation of sulphur ...
Ryo Sato, Taro Nakamura
openaire +3 more sources
1987
Publisher Summary This chapter describes the general methods are described for cysteine S-conjugates synthesis and purification with special emphasis on radiolabeled compounds. Synthesis using methanol and sodium methoxide as base is a procedure, adapted from a method for the synthesis of mercapturic acids, can be used for the synthesis of most ...
James L. Stevens +3 more
openaire +3 more sources
Publisher Summary This chapter describes the general methods are described for cysteine S-conjugates synthesis and purification with special emphasis on radiolabeled compounds. Synthesis using methanol and sodium methoxide as base is a procedure, adapted from a method for the synthesis of mercapturic acids, can be used for the synthesis of most ...
James L. Stevens +3 more
openaire +3 more sources