Min-oscillations in Escherichia coli induced by interactions of membrane-bound proteins

Details Min-oscillations in Escherichia coli induced by interactions of membrane-bound proteins Min-oscillations in Escherichia coli induced by interactions of membrane-bound proteins

2005-04-13

arxiv.org/abs/q-bio/0504017v1

Phys. Biol. 2 (2005) 89-97

Biology

Quantitative Biology

Subcellular Processes

17 pages, 5 figures. Submitted to Physical Biology

Scientific paper

10.1088/1478-3975/2/2/002

During division it is of primary importance for a cell to correctly determine the site of cleavage. The bacterium Escherichia coli divides in the center, producing two daughter cells of equal size. Selection of the center as the correct division site is in part achieved by the Min-proteins. They oscillate between the two cell poles and thereby prevent division at these locations. Here, a phenomenological description for these oscillations is presented, where lateral interactions between proteins on the cell membrane play a key role. Solutions to the dynamic equations are compared to experimental findings. In particular, the temporal period of the oscillations is measured as a function of the cell length and found to be compatible with the theoretical prediction.

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