New release (2022.2) online!
Learn more about features, functions and data:
BKMS-react is an integrated and non-redundant biochemical reaction database containing known enzyme-catalyzed and spontaneous reactions. Biochemical reactions collected from BRENDA, KEGG, MetaCyc and SABIO-RK were matched and integrated by aligning substrates and products.

:= BRENDA, := KEGG, := MetaCyc, := SABIO-RK
:= amino acid sequences := show the reaction diagram
Results per page 
  • 10 results
  • 50 results
  • 100 results
  • 500 results
  • 100000 results
Show or hide columns 
  • EC Number
  • Reaction
  • Pathways
  • Reaction IDs
  • Stoichiometry Check
  • Missing Substrate
  • Missing Product
  • Commentary
  • Remark
EC Number
Reaction IDs
Stoichiometry Check  
pyranose dehydrogenase (acceptor)
a pyranose + acceptor = a pyranos-2-ulose (or a pyranos-3-ulose or a pyranos-2,3-diulose) + reduced acceptor
: Requires FAD. A number of aldoses and ketoses in pyranose form, as well as glycosides, gluco-oligosaccharides, sucrose and lactose can act as a donor. 1,4-Benzoquinone or ferricenium ion (ferrocene oxidized by removal of one electron) can serve as acceptor. Unlike EC, pyranose oxidase, this fungal enzyme does not interact with O2 and exhibits extremely broad substrate tolerance with variable regioselectivity (C-3, C-2 or C-3 + C-2 or C-3 + C-4) for (di)oxidation of different sugars. D-Glucose is exclusively or preferentially oxidized at C-3 (depending on the enzyme source), but can also be oxidized at C-2 + C-3. The enzyme also acts on 1->4-α- and 1->4-β-gluco-oligosaccharides, non-reducing gluco-oligosaccharides and L-ARABINOSE, which are not substrates of EC Sugars are oxidized in their pyranose but not in their furanose form.