dilutions: mouse anti-HA-epitope IgG (Santa Cruz Biotechnology Inc.) at 1:1000,
rabbit anti-Rab11 at 1:200 44 (link), rabbit
anti-Rab5a at 1:200 68 (link), mouse anti-p67 at
1:1000 43 (link), mouse anti-BiP at 1:10 000
41 (link), rabbit anti-VSG221 at 1:1000
68 (link), rabbit anti-RabX2 at 1:50 71 (link), rabbit anti-IGP48 (this study) at 1:50.
Secondary antibodies were used at the following dilutions: anti-mouse Oregon
Green (Molecular Probes) at 1:1000 and anti-rabbit Cy3 (Sigma) at 1:1000. Cells
were examined on a Nikon Eclipse E600 epifluorescence microscope fitted with
optically matched filter blocks and a Hamamatsu ORCA charge-coupled-device
camera. Digital images were captured using Metamorph software (Universal Imaging
Corp.) on a computer running the Windows XP operating system (Microsoft Inc.)
and the raw images processed using Photoshop CS6 software (Adobe Systems Inc.).
Confocal z-sections were acquired using a Leica DMIRE2 microscope and
deconvolved using Huygens Professional software.