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Title: A framework for discrete stochastic simulation on 3D moving boundary domains

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4967338· OSTI ID:1332016
ORCiD logo [1];  [1]; ORCiD logo [2];  [3];  [4]
  1. Univ. of California Santa Barbara, Santa Barbara, CA (United States). Dept. of Computer Science
  2. Univ. of California Santa Barbara, Santa Barbara, CA (United States). Dept. of Mechanical Engineering
  3. Univ. of California Santa Barbara, Santa Barbara, CA (United States). Dept. of Molecular, Cellular, and Developmental Biology
  4. Univ. of California Santa Barbara, Santa Barbara, CA (United States). Dept. of Computer Science and Dept. of Mechanical Engineering

We have developed a method for modeling spatial stochastic biochemical reactions in complex, three-dimensional, and time-dependent domains using the reaction-diffusion master equation formalism. In particular, we look to address the fully coupled problems that arise in systems biology where the shape and mechanical properties of a cell are determined by the state of the biochemistry and vice versa. To validate our method and characterize the error involved, we compare our results for a carefully constructed test problem to those of a microscale implementation. Finally, we demonstrate the effectiveness of our method by simulating a model of polarization and shmoo formation during the mating of yeast. The method is generally applicable to problems in systems biology where biochemistry and mechanics are coupled, and spatial stochastic effects are critical.

Research Organization:
Univ. of California Santa Barbara, Santa Barbara, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division; National Institutes of Health (NIH); US Army Research Office (ARO); National Science Foundation (NSF)
Grant/Contract Number:
sc0008975; R01-GM113241; R01-EB014877; W911NF-09-0001; DMS-1001012
OSTI ID:
1332016
Alternate ID(s):
OSTI ID: 1420730; OSTI ID: 1423940
Journal Information:
Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Vol. 145 Journal Issue: 18; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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Cited By (2)

Simulating biological processes: stochastic physics from whole cells to colonies journal April 2018
The effect of cell geometry on polarization in budding yeast journal June 2018