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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
PEPC(EC 4.1.1.31)广泛存在于动物、植物、微生物和细胞中,是催化磷酸烯醇式丙酮酸与二氧化碳反应生成草酰乙酸呈不可逆反应的酶,对三羧酸循环的运转起重要调节作用。 测定原理:PEPC催化磷酸烯醇式丙酮酸和CO₂生成草酰乙酸和HPO₄²⁻,苹果酸脱氢酶进一步催化草酰乙酸和NADH生成苹果酸和NAD⁺,在340nm测定NADH减少速率,计算PEPC活性。
Phosphoenolpyruvate Carboxylase (PEPC, EC 4.1.1.31) is widely present in animals, plants, microorganisms, and cells. It catalyzes the irreversible conversion of phosphoenolpyruvate and carbon dioxide into oxaloacetate, playing a crucial regulatory role in the operation of the tricarboxylic acid (TCA) cycle. Assay Principle: PEPC catalyzes the formation of oxaloacetate and HPO₄²⁻ from phosphoenolpyruvate and CO₂. Malate dehydrogenase further catalyzes the conversion of oxaloacetate and NADH to malate and NAD⁺. The activity of PEPC is calculated by measuring the rate of decrease in NADH at 340 nm.