IUBMB Enzyme Nomenclature


Accepted name: 2-dehydropantolactone reductase (Si-specific)

Reaction: (R)-pantolactone + NADP+ = 2-dehydropantolactone + NADPH + H+

Other name(s): 2-oxopantoyl lactone reductase; 2-ketopantoyl lactone reductase; ketopantoyl lactone reductase; 2-dehydropantoyl-lactone reductase (B-specific); (R)-pantolactone:NADP+ oxidoreductase (B-specific); 2-dehydropantolactone reductase (B-specific)

Systematic name: (R)-pantolactone:NADP+ oxidoreductase (Si-specific)

Comments: The Escherichia coli enzyme differs from that from yeast [EC 2-dehydropantolactone reductase (Re-specific)], which is specific for the Re-face of NADP+, and in receptor requirements from EC 3-hydroxycyclohexanone dehydrogenase.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 37211-75-9


1. 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]

[EC created 1986, modified 1999, modified 2013]

Return to EC 1.1.1 home page
Return to EC 1.1 home page
Return to EC 1 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page