Production-Passage-Time Approximation: A New Approximation Method to Accelerate the Simulation Process of Enzymatic Reactions

Abstract. Given the substantial computational requirements of stochastic simulation, approximation is essential for efficient analysis of any realistic biochemical system. This paper introduces a new approximation method to reduce the computational cost of stochastic simulations of an enzymatic reaction scheme which in biochemical systems often includes rapidly changing fast reactions with enzyme and enzyme-substrate complex molecules present in very small counts. Our new method removes the substrate dissociation reaction by approximating the passage time of the formation of each enzyme-substrate complex molecule which is destined to a production reaction. This approach skips the firings of unimportant yet expensive reaction events, resulting in a substantial acceleration in the stochastic simulations of enzymatic reactions. Additionally, since all the parameters used in our new approach can be derived by the MichaelisMenten parameters which can actually be measured from experimental d...

• Type: Conference
• Year: 2007
• Where: RECOMB
• Authors: Hiroyuki Kuwahara, Chris J. Myers
• Keywords: Computational Biology, Customized Simulation Procedure, Realistic Biochemical System, RECOMB 2007, Temporal Behavior Analysis