Coping with Noise in E. coli Chemotaxis
Andrews, B.W.
Iglesias, P.A.
Tau-Mu Yi
Johns Hopkins Univ., Baltimore;
This paper appears in: Information Sciences and Systems, 2007. CISS '07. 41st Annual Conference on
Publication Date: 14-16 March 2007
On page(s): 442-443
Location: Baltimore, MD,
ISBN: 1-4244-1063-3
INSPEC Accession Number: 9793061
Digital Object Identifier: 10.1109/CISS.2007.4298345
Current Version Published: 2007-09-04
Abstract
In this work, we use theoretical tools to study the effects of noise on the ability of a cell to chemotax and, more specifically, how bacteria cope. We first use simulations to show that adaptation time (filter cutoff frequency) affects the chemotactic performance of the cell and that mere exists an optimal adaptation time that allows cells to chemotax tire furthest. Having shown that the adaptation time can make a difference to chemotactic efficiency we conjecture that this effect is predicated on the ability of the cell to estimate its environment accurately in the presence of noise.
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