How is SBML different from BioPAX?
While BioPAX is meant ot facilitate the exchange of biological pathways, SBML has been designed to facilitate exchange and reuse of quantitative models, not necessarily limited to the biochemical events. SBML models contain information about sizes, amounts and kinetics, that cannot be expressed with BioPAX. Conversely, BioPAX being an ontology, one can define much more precisely the identity of the objects considered, whether physical entities or biochemical events. In SBML, this information may be encoded using annotation with terms from the Systems Biology Ontology . Although SBML and BioPAX do not fulfill the same purpose, it is nevertheless possible to convert one into another. Examples of tools providing this service are BiNoM and BioModels Database.
