Whole mount staining was performed as in [29] (link). Antibodies used were as follows: mouse anti-Orb2 2D11 and 4G8 IgG (undiluted, developed in the lab) [29] (link), rabbit anti-Bol (1∶1000, a gift from Steven Wasserman) [46] (link), monoclonal anti-β-Tubulin E7 1∶50 (Developmental Studies Hybridoma Bank), rabbit anti-aPKCζ (1∶1000, clone c-20, sc-216, Santa Cruz Biotechnology), rabbit anti-GFP (1∶1000, Cristea Lab, Princeton University). Rabbit polyclonal anti-Dlg-PDZ1 (1∶1000) and guinea pig anti-Bazooka (1∶500) were provided by Yu-Chiun Wang [47] (link). Actin was stained with Alexa488-phalloidin (Invitrogen, Carlsbad, CA). DNA was stained with Hoechst (1∶1000). Secondary antibodies used were goat anti-mouse IgG Alexa 488, 546 or 647, goat anti-rabbit Alexa 488, 546 or 647 (Molecular Probes, Inc.). Samples were mounted in Aqua-polymount on slides for an inverted Zeiss LSM510 or Leica SP5 confocal microscope.
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