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Science  11 Feb 2000:
Vol. 287, Issue 5455, pp. 927
DOI: 10.1126/science.287.5455.927d

Some cells get around by chemotaxis: crawling along slight gradients of attracting chemicals. This week Science Online features a chemotaxis film festival: 14 video clips of moving, fluorescently tagged cells shed light on the molecular mechanisms behind this process. See articles by Servant et al. and Jin et al.

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