NAD acts as a cofactor for
In the TCA cycle,Step 3. In the third step, isocitrate is oxidized and releases a molecule of carbon dioxide, leaving behind a five-carbon molecule--a-ketoglutarate. During this step, \text{NAD}^+NAD + N, A, D, sta superscript, plus, end superscript is reduced to form \text{NADH}NADHN, A, D, H. The enzyme catalyzing this step, isocitrate dehydrogenase, is impoant in regulating the speed of the citric acid cycle.Ref: DM Vasudevan, 6th edition, page no: 218
Citrate synthetase
Isocitrate dehyrogenase
a ketoglutarate dehyrogenase
Malate dehydrogenase
Metabolism of carbohydrate