Substrate Inhibition-rate law

Question

[Natasha]

Hello Everyone, I am looking for a rate law that can be used for a reaction consisting of two reactants and one of the reactants acts as an inhibitor i.e A+B -> C+D and A is a inhibitor when the concentrations exceeds a certain level.Also,the reaction is irreversible. Could some suggest me a suitable rate law?

[Kevin Blighe]

How has this relevance to bioinformatics?