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Cell biology is being inundated by an avalanche of data from the genomics and proteomics enterprises. The complexity and sheer volume of information threaten to overwhelm the ability of traditional cell biologists to grasp its implications and develop experimentally testable hypotheses. For this reason, some have begun to explore computational approaches towards organizing complex data into quantitative...
Actin polymerization in vivo is dependent on free barbed ends that act as nuclei. Free barbed ends can arise in vivo by nucleation from the Arp2/3 complex, uncapping of barbed ends on pre-existing filaments or severing of filaments by cofilin. There is evidence that each mechanism operates in cells. However, different cell types use different combinations of these processes to generate barbed ends...
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