2003/05/06 by A. Buonocore, A. Di Crescenzo, Buonocore, A. +5
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #FOS: Biological sciences #FOS: Physical sciences #Quantitative Biology (q-bio) #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.soft #cond-mat.stat-mech #q-bio
paper · pdf · doi:10.48550/arxiv.cond-mat/0305115
9 pages, 4 figures
arxiv created 2003/05/06 · arxiv updated 2009/11/30
A jump-diffusion process is proposed to describe the displacements performed by single myosin heads along actin filaments during the rising phases. The process consists of the superposition of a Wiener and a jump process, with jumps originated by sequences of Poisson-distributed energy-supplying pulses. In a previous paper, the amplitude of the jumps was described by a mixture of two Gaussian distributions. To embody the effects of ATP hydrolysis, we now refine such a model by assuming that the jumps' amplitude is described by a mixture of three Gaussian distributions. This model has been inspired by the experimental data of T. Yanagida and his co-workers concerning observations at single molecule processes level.