Figure 4.
Stretching/compression and assembly/disassembly maps of actin and myosin II. Maps of concentration (A and D), velocity divergence (B and E) and assembly (C and F) of actin (A–C) and myosin II (D–F) are shown. Negative divergence (blue) reflects compression; in assembly maps, positive values represent assembly, and negative values represent disassembly. Note the blue contraction area in B and E at the lamellipodium–cell body boundary. Bar, 10 μm.