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. 2013 Sep 30;202(7):1057–1073. doi: 10.1083/jcb.201210123

Figure 2.

Figure 2.

Localization and dynamics of actin nodes and myosin II. (A) The dynamic reorganization of F-actin and myosin II was visualized using Lifeact-Ruby and EGFP-tagged MRLC (EGFP-MRLC). MEFs were plated on fibronectin-patterned glass coverslips and then treated with 200 nM LatA. The cell area was marked as the yellow contour. Regions marked in white boxes are magnified in B and show the dynamic reorganization of actin and MRLC. Actin nodes and MRLC first exhibited an alternating pattern (0–20 s, yellow arrows), but the degree of colocalization increases with time. (C) The 3D kymograph of time-lapsed images in B. As multiple actin node fusion and fission events occurred, zigzag patterns appeared in the 3D kymograph. Bars: (A) 10 µm; (B) 2 µm; (C) 5 µm.