Cells were cultured in 8-well Lab-Tek Chamber Slides (Cat. no. 177402) for indicated time period. Cells were fixed, permeabilized, blocked, and stained as described previously28 (link). For indirect immunofluorescent cell staining, an anti-FLAG M2 monoclonal antibody and an Alexa Fluor 594-conjugated goat anti-mouse antibody were used to detect FLAG-CASZ1b or mutant constructs. An anti-MHC antibody and an Alexa Fluor 594-conjugated goat anti-mouse antibody were used to detect MHC. Stained cells were imaged and analyzed using a Nikon Eclipse TE300 fluorescent microscope.
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