arXiv
Open Access
2012
Signalling noise enhances chemotactic drift of E. coli
Marlo Flores
Thomas S. Shimuzu
Pieter Rein ten Wolde
Filipe Tostevin
Abstrak
Noise in transduction of chemotactic stimuli to the flagellar motor of E. coli will affect the random run-and-tumble motion of the cell and the ability to perform chemotaxis. Here we use numerical simulations to show that an intermediate level of noise in the slow methylation dynamics enhances drift while not compromising localisation near concentration peaks. A minimal model shows how such an optimal noise level arises from the interplay of noise and the dependence of the motor response on the network output. Our results suggest that cells can exploit noise to improve chemotactic performance.
Penulis (4)
M
Marlo Flores
T
Thomas S. Shimuzu
P
Pieter Rein ten Wolde
F
Filipe Tostevin
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2012
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