From the Kyoto Encyclopedia of
Genes and Genomes. Choose a pathway from the list, then there
is a drop-down menu from which to choose an organism, and the pathway for
that organism is displayed. Enzymes are indicated by their IUPAC numbers,
and clicking on an enzyme number connects to a page with extensive information
about the enzyme and links to protein databases. For more information,
consult the instructionspage for use of this information.