| http://www.w3.org/ns/prov#value | - A cell, such as a white blood cell, yeast cell or slime mold cell, is believed to sense the signal direction by spatially recognizing external gradients (receptor proteins become more concentrated on the side of the cell where the signal is present) [24].Once cell movement begins, the process, which involves the constant restructuring of the actin cytoskeleton, can be divided into three stages in
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