Isocitrate Dehydrogenase - ț̢
An enzyme of the oxidoreductase class that catalyzes the conversion of isocitrate and NAD+ to yield 2-ketoglutarate, carbon dioxide, and NADH. It occurs in cell mitochondria. The enzyme requires Mg2+, Mn2+; it is activated by ADP, citrate, and Ca2+, and inhibited by NADH, NADPH, and ATP. The reaction is the key rate-limiting step of the citric acid (tricarboxylic) cycle. (From Dorland, 27th ed) (The NADP+ enzyme is EC 1.1.1.42.) EC 1.1.1.41.
Synonyms : Isocitrate Dehydrogenase (NAD+), Isocitrate Dehydrogenase-I, Dehydrogenase, Isocitrate, Dehydrogenase, NAD Isocitrate, Isocitrate Dehydrogenase I, Isocitrate Dehydrogenase, NAD
Isocitrate Lyase - ț̢
A key enzyme in the glyoxylate cycle. It catalyzes the conversion of isocitrate to succinate and glyoxylate. EC 4.1.3.1.