Homocysteine CAS Registry Number: 6027-13-0 L-高半胱氨酸

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Literature References: A sulfur containing amino acid, produced by the demethylation of methionine and an intermediate in the biosynthesis of cysteine from methionine. Originally obtained from the liver of mammals. Has also been obtained from cystathionine: Binkley, Methods Enzymol. 2, 314 (1955). D-Homocysteine may be prepd from S-benzyl-D-homocysteine, while L-homocysteine is best obtained from L-homocystine: du Vigneaud, Brown, Biochem. Prep. 5, 93 (1957), see also Patterson, du Vigneaud, J. Biol. Chem. 111, 393 (1935); Riegel, du Vigneaud, ibid. 112, 149 (1935). Origin and biochemical conversions in review by Shapiro, Schlenk, Adv. Enzymol. 22, 264-268 (1960). Use of L-form sodium salt as flavor enhancer similar to monosodium glutamate: Kaneko et al., US 3259505 (1966 to Ajinomoto Kabushiki Kaisha).