mitochondrial isocitrate dehydrogenase complex (NAD+) GO:0005962 Mitochondrial complex that possesses isocitrate dehydrogenase (NAD+) activity. Note that this term represents a location and not a function; the activity possessed by this complex is mentioned in the definition for the purpose of describing and distinguishing the complex. The function of this complex is represented by the molecular function term 'isocitrate dehydrogenase (NAD+) activity ; GO:0004449'. cellular_component go.owl pro.owl mitochondrial tricarboxylic acid cycle enzyme complex isocitrate dehydrogenase complex (NAD+)