CATH Classification

Domain Context

CATH Clusters

Superfamily Dihydrodipicolinate Reductase; domain 2
Functional Family

Enzyme Information

1.1.1.292
1,5-anhydro-D-fructose reductase (1,5-anhydro-D-mannitol-forming).
based on mapping to UniProt Q2I8V6
1,5-anhydro-D-mannitol + NADP(+) = 1,5-anhydro-D-fructose + NADPH.
-!- Present in some but not all Rhizobium species. -!- Differs from hepatic 1,5-anhydro-D-fructose reductase, which yields 1,5-anhydro-D-glucitol as the product (see EC 1.1.1.263). -!- In Sinorhizobium morelense, the product of the reaction, 1,5-anhydro- D-mannitol, can be further metabolized to D-mannose. -!- Also reduces 1,5-anhydro-D-erythro-hexo-2,3-diulose and 2-ketoaldoses (called osones), such as D-glucosone (D-arabino-hexos-2-ulose) and 6-deoxy-D-glucosone. -!- Does not reduce common aldoses and ketoses, or non-sugar aldehydes and ketones.

UniProtKB Entries (1)

Q2I8V6
AFR_ENSAD
Ensifer adhaerens
1,5-anhydro-D-fructose reductase

PDB Structure

PDB 2GLX
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Crystal Structure of NADP(H)-Dependent 1,5-Anhydro-d-fructose Reductase from Sinorhizobium morelense at 2.2 A Resolution: Construction of a NADH-Accepting Mutant and Its Application in Rare Sugar Synthesis
Dambe, T.R., Kuehn, A.M., Brossette, T., Giffhorn, F., Scheidig, A.J.
Biochemistry