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PLoS Comput Biol


Title:Detailed simulations of cell biology with Smoldyn 2.1
Author(s):Andrews SS; Addy NJ; Brent R; Arkin AP;
Address:"Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States of America. sandrews@fhcrc.org"
Journal Title:PLoS Comput Biol
Year:2010
Volume:20100312
Issue:3
Page Number:e1000705 -
DOI: 10.1371/journal.pcbi.1000705
ISSN/ISBN:1553-7358 (Electronic) 1553-734X (Print) 1553-734X (Linking)
Abstract:"Most cellular processes depend on intracellular locations and random collisions of individual protein molecules. To model these processes, we developed algorithms to simulate the diffusion, membrane interactions, and reactions of individual molecules, and implemented these in the Smoldyn program. Compared to the popular MCell and ChemCell simulators, we found that Smoldyn was in many cases more accurate, more computationally efficient, and easier to use. Using Smoldyn, we modeled pheromone response system signaling among yeast cells of opposite mating type. This model showed that secreted Bar1 protease might help a cell identify the fittest mating partner by sharpening the pheromone concentration gradient. This model involved about 200,000 protein molecules, about 7000 cubic microns of volume, and about 75 minutes of simulated time; it took about 10 hours to run. Over the next several years, as faster computers become available, Smoldyn will allow researchers to model and explore systems the size of entire bacterial and smaller eukaryotic cells"
Keywords:"*Algorithms Computer Simulation *Models, Biological Proteome/*metabolism Signal Transduction/*physiology *Software;"
Notes:"MedlineAndrews, Steven S Addy, Nathan J Brent, Roger Arkin, Adam P eng R01 GM097479/GM/NIGMS NIH HHS/ Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2010/03/20 PLoS Comput Biol. 2010 Mar 12; 6(3):e1000705. doi: 10.1371/journal.pcbi.1000705"

 
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