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Quantitative Biology > Subcellular Processes

arXiv:q-bio/0511049 (q-bio)
[Submitted on 29 Nov 2005]

Title:A stochastic model of Min oscillations in Escherichia coli and Min protein segregation during cell division

Authors:Filipe Tostevin, Martin Howard
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Abstract: The Min system in Escherichia coli directs division to the centre of the cell through pole-to-pole oscillations of the MinCDE proteins. We present a one dimensional stochastic model of these oscillations which incorporates membrane polymerisation of MinD into linear chains. This model reproduces much of the observed phenomenology of the Min system, including pole-to-pole oscillations of the Min proteins. We then apply this model to investigate the Min system during cell division. Oscillations continue initially unaffected by the closing septum, before cutting off rapidly. The fractions of Min proteins in the daughter cells vary widely, from 50%-50% up to 85%-15% of the total from the parent cell, suggesting that there may be another mechanism for regulating these levels in vivo.
Comments: 19 pages, 12 figures (25 figure files); published at this http URL
Subjects: Subcellular Processes (q-bio.SC); Statistical Mechanics (cond-mat.stat-mech)
Cite as: arXiv:q-bio/0511049 [q-bio.SC]
  (or arXiv:q-bio/0511049v1 [q-bio.SC] for this version)
  https://doi.org/10.48550/arXiv.q-bio/0511049
Journal reference: Phys. Biol. 3 (2006) 1-12
Related DOI: https://doi.org/10.1088/1478-3975/3/1/001

Submission history

From: Filipe Tostevin [view email]
[v1] Tue, 29 Nov 2005 19:34:53 UTC (983 KB)
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