Reaction: (R)-pantolactone + NADP+ = 2-dehydropantolactone + NADPH + H+
Other name(s): 2-oxopantoyl lactone reductase; ketopantoyl lactone reductase; 2-ketopantoyl lactone reductase; 2-dehydropantoyl-lactone reductase (A-specific); (R)-pantolactone:NADP+ oxidoreductase (A-specific); 2-dehydropantolactone reductase (A-specific)
Systematic name: (R)-pantolactone:NADP+ oxidoreductase (Re-specific)
Comments: The yeast enzyme differs from that from Escherichia coli [EC 188.8.131.52 2-dehydropantolactone reductase (Si-specific)], which is specific for the Si-face of NADP+, and in receptor requirements from EC 184.108.40.206 3-hydroxycyclohexanone dehydrogenase.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 37211-75-9
1. King, H.L., Jr., Dyar, R.E. and Wilken, D.R. Ketopantoyl lactone and ketopantoic acid reductases. Characterization of the reactions and purification of two forms of ketopantoyl lactone reductase. J. Biol. Chem. 247 (1972) 4689-4695. [PMID: 4603075]
2. Wilken, D.R., King, H.L., Jr. and Dyar, R.E. Ketopantoic acid and ketopantoyl lactone reductases. Stereospecificity of transfer of hydrogen from reduced nicotinamide adenine dinucleotide phosphate. J. Biol. Chem. 250 (1975) 2311-2314. [PMID: 234966]