2.7.1.56	additional information	no activation by pyruvate, phosphoenolpyruvate, AMP, cAMP, citrate, fructose 6-phosphate, glucose 6-phosphate, 6-phosphogluconate or 2-keto-3-deoxy-6-phosphogluconate	641685	
2.7.1.56	reduced glutathione	serves as the best sulphydryl compound for optimum activity. Cysteine, 2-mercaptoethanol and dithiothreitol can substitute for glutathione contributing about 80% of the activity	727057