GDH（EC 1.4.1.2）广泛分布于植物中，和谷氨酸合成酶（GOGAT）共同参与谷氨酸的合成，在氨同化和转化成有机氮化合物的代谢中起重要作用。 测定原理：GDH催化NH₄⁺、α-酮戊二酸和NADH，生成谷氨酸和NAD⁺，引起340nm吸光度下降。通过测定340nm吸光度的下降速率，计算GDH活性。
Glutamate Dehydrogenase (EC 1.4.1.2) is widely distributed in plants. Together with Glutamine Synthase (GOGAT), it participates in the synthesis of glutamate and plays a crucial role in the metabolism of ammonia assimilation and its conversion into organic nitrogen compounds. Assay Principle: GDH catalyzes the reaction of NH₄⁺, α-ketoglutarate, and NADH to produce glutamate and NAD⁺, resulting in a decrease in absorbance at 340 nm. The activity of GDH is calculated by measuring the rate of decrease in absorbance at 340 nm.
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