Anti-α-tubulin antibody (mouse, FITC-DM1A, F2168; Sigma-Aldrich), anti-CENP-A antibody (mouse, ab13939; Abcam), anti-MKLP1 antibody (rabbit, ab204478; Abcam), and Rhodamine-conjugated phalloidin (R415; Invitrogen) were used for immunofluorescence. The appropriate secondary antibodies were purchased from Jackson ImmunoResearch Laboratories. Antibodies used for western blots were anti-α-tubulin (mouse, DM1A, T9017; Sigma-Aldrich) and anti-BubR1 (mouse, 612503; BD Biosciences). Anti-CENP-E antibody (HpX) was generated as previously described (Yao et al., 1997 (link)). Anti-PRC1 antibody used in immunofluorescence and western blot was generated as described (Fu et al., 2007 (link)).
Nocodazole (100 ng/ml), monastrol (50 μM), MG132 (10 μM), and reversine (300 nM) were from Sigma. GSK923295 (100 nM) and BI2536 (100 nM) were from Selleckchem. Syntelin (1 μM) was synthesized as described before (Ding et al., 2010 (link)). The protease inhibitor cocktail was from Sigma.