There are several forms of malate dehydrogenases that differ by their use of substrate and cofactors. This NAD+-dependent enzyme forms oxaloacetate and unlike EC
1.1.1.38, malate dehydrogenase (oxaloacetate-decarboxylating), is unable to convert it to pyruvate. Also oxidizes some other 2-hydroxydicarboxylic acids. cf. EC
1.1.1.82, malate dehydrogenase (NADP+); EC
1.1.1.299, malate dehydrogenase [NAD(P)+]; and EC
1.1.5.4, malate dehydrogenase (quinone).