New release (2021.2) 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  
uracil/thymine dehydrogenase
thymine + H2O + acceptor = 5-methylbarbiturate + reduced acceptor
: Forms part of the oxidative pyrimidine-degrading pathway in some microorganisms, along with EC and EC Mammals, plants and other microorganisms utilize the reductive pathway, comprising EC or EC, EC and EC, with the ultimate degradation products being an L-amino acid, NH(3) and CO(2). Formerly EC and EC