In enviPath, reaction objects represent biotransformation reactions from educt compound(s) to product compound(s). Reactions are directly linked to the involved compounds. A link from a rule to a reaction indicates that a reaction is in agreement with the generalized biotransformation rule.
Additionally, meta-information like experimental conditions or enzymes can be stored with a reaction. Enzyme information can be used to link out to enzyme databases such as KEGG or BRENDA.
A list of all available reactions is provided here: http://envipath.org/reaction. To view all reactions of a particular package, select the package first, then the reactions within this package (http://evipath.org/package/<id>/reaction).
Creating a reaction
Alternatively, reactions are created during Pathway prediction, where each edge in the pathway corresponds to a reaction.