β-氨基异丁酸（R）-和（S）-对映体之间相互转化的评估。
Evaluation of interconversion between (R)- and (S)-enantiomers of beta-aminoisobutyrate.
作者信息
Tamaki N, Kaneko M, Kikugawa M, Fujimoto S
机构信息
Laboratory of Nutritional Chemistry, Faculty of Nutrition, Kobe-Gakuin University, Japan.
出版信息
Biochim Biophys Acta. 1990 Jul 20;1035(1):117-9. doi: 10.1016/0304-4165(90)90183-w.
The conversion of (R)- to (S)-beta-aminoisobutyrate was observed in the presence of D-3-aminoisobutyrate-pyruvate aminotransferase, aminobutyrate aminotransferase, pyruvate and L-glutamate. The reverse reaction was also found in the presence of 2-oxoglutarate and L-alanine. Neither D-3-aminoisobutyrate-pyruvate aminotransferase nor aminobutyrate aminotransferase revealed a racemase activity of the enantiomorphs.
在D-3-氨基异丁酸-丙酮酸转氨酶、氨基丁酸转氨酶、丙酮酸和L-谷氨酸存在的情况下，观察到了（R）-β-氨基异丁酸向（S）-β-氨基异丁酸的转化。在2-氧代戊二酸和L-丙氨酸存在的情况下也发现了逆反应。D-3-氨基异丁酸-丙酮酸转氨酶和氨基丁酸转氨酶均未显示对映体的消旋酶活性。
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