Movie S12.

Heterochromatin dynamics in cytochalasin-D–treated LP cell. Z-projected time series of a typical H2B-EGFP labeled nucleus of NIH 3T3 cell cultured on LP micropattern after 30 min treatment with 500 nM cytochalasin-D. Blue spots represent the heterochromatin foci obtained by thresholding H2B-EGFP intensity.