Jasplakinolide and latrunculin A were purchased from Invitrogen.
Nocodazole, colchicine, taxol (paclitaxel), sodium azide (NaN3), 2-
deoxy-D-glucose, cytochalasin D, 2, 3-butanedione monoxime (BMD),
and blebbistatin were purchased from Sigma-Aldrich. Phorbol 12-
myristate 13-acetate (PMA), bisindolylmaleimide I, and staurosporine
were purchased from Calbiochem.