Over the past decade, intracellular fluorescence ...

Carolina Tropini, Sandhu Sinha

As bacterial cells organize their interior? Over the past decade, intracellular fluorescence microscopy made the new understanding of the diversity of ways in which proteins are separated and organized in bacterial membranes. Though some targeting anchors are known, cellular symmetry breaking ultimately requires molecular components that self-organization. Excellent accuracy of cell division E.coli and related bacteria partially regulated by Min-protein system that prevents cell division near ends varies spatially from pole to pole. We have developed a model Min systems using only known properties of proteins, which accurately reproduces the observed variations in both bacillary and round cells. In particular, we show that Min-protein oscillations can select the long axis nearly round cells, a potentially important factor in the division plane of choice in the first round bacteria such strattera online as Neisseria gonnorhoeae. These results indicate that fluctuations can provide a general mechanism by which proteins are localized in connection with the peculiarities of cell geometry incapable localization of individual molecules. .