D MICAL2PV mutants containing the MO domain are active in depolymerizing F-actin. Following transfection of plasmids expressing different HA-MICAL2PV mutants (#1, #2, or #4) into shM2 cells, confocal microscopy was performed following staining with phalloidin (red) and anti-HA antibody (green). F-actin signals were reduced in cells expressing different mutants (HA-positive green cells marked by dashed lines). Scale bar: 20 μm. Data information: nuclei were stained with Hoechst 33342 (blue). 