ID 1.1.1.168 DE 2-dehydropantolactone reductase (Re-specific). AN 2-dehydropantolactone reductase (A-specific). AN 2-dehydropantoyl-lactone reductase (A-specific). AN 2-ketopantoyl lactone reductase. AN ketopantoyl lactone reductase. CA (R)-pantolactone + NADP(+) = 2-dehydropantolactone + H(+) + NADPH. CC -!- The enzyme from Saccharomyces cerevisiae differs from that from CC Escherichia coli (EC 1.1.1.214), which is specific for the Si-face of CC NADP, and in receptor requirements from EC 1.1.99.26. //