Reaction duplication among products

We can see, then, that we have a number of catalysts (enzymes) and a number of possible reactions, each catalyst may promote several reactions, and each reaction may be carried out by several catalysts. Storing these associations directly is obviously not difficult, since they are similar to the association of bioreactions and compounds (each bioreaction involves many compounds, and each compound participates in many bioreactions). The difficulty is that each pairing of an enzyme and a reaction involves additional information, such as different kinetics. In order to accommodate this information, we will use, in addition to bioreactions and enzymes, a third type of object, called an enzymatic activity, to represent a specific pairing of a catalyst and a reaction. We will then try to distribute information among the three types of objects (Tables 7 and 8), so that it is not duplicated. For example, the equilibrium constant or the stoichiometry refers to a bioreaction and is the same for all enzymes that catalyze it. The kinetics, on the other hand, must refer to a specific enzymatic activity. The regulation of the production of an enzyme affects all of its enzymatic activities and should be stored in the enzyme... 

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