IUBMB Enzyme Nomenclature


Accepted name: sorbose reductase

Reaction: D-glucitol + NADP+ = L-sorbose + NADPH + H+

For diagram, click here

Glossary: L-sorbose = L-xylo-hex-2-ulose

Other name(s): Sou1p

Systematic name: D-glucitol:NADP+ oxidoreductase

Comments: The reaction occurs predominantly in the reverse direction. This enzyme can also convert D-fructose into D-mannitol, but more slowly. Belongs in the short-chain dehydrogenase family.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 138440-90-1


1. Greenberg, J.R., Price, N.P., Oliver, R.P., Sherman, F. and Rustchenko, E. Candida albicans SOU1 encodes a sorbose reductase required for L-sorbose utilization. Yeast 22 (2005) 957-969. [PMID: 16134116]

2. Sugisawa, T., Hoshino, T. and Fujiwara, A. Purification and properties of NADPH-linked L-sorbose reductase from Gluconobacter melanogenus N44-1. Agric. Biol. Chem. 55 (1991) 2043-2049.

3. Shinjoh, M., Tazoe, M. and Hoshino, T. NADPH-dependent L-sorbose reductase is responsible for L-sorbose assimilation in Luconobacter suboxydans IFO 3291. J. Bacteriol. 184 (2002) 861-863. [PMID: 11790761]

[EC created 2006]

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