Immunocytochemical labeling of actin filaments in A7r5 cells. Methanol and acetone fixed cells were labeled with mouse monoclonal anti-Actin (AM2021) and rabbit polyclonal anti-Actin (AP1651). The antibodies were detected using Goat anti-Mouse or Goat anti-Rabbit DyLight® 594. Paraformaldehyde-fixed and NP-40-permeabilized cells were labeled with Phalloidin:FITC.