Immunocytochemistry/ Immunofluorescence - Mannose 6 Phosphate Receptor (Cation independent) antibody [2G11] - Late Endosome Marker (ab2733)

ICC/IF image of ab2733 stained human HeLa cells. The cells were methanol fixed (5 min) and incubated with the antibody (ab2733, 1µg/ml) for 1h at room temperature. The secondary antibody (green) was Alexa Fluor® 488 goat anti-mouse IgG (H+L) used at a 1/1000 dilution for 1h. Image-iT^TM FX Signal Enhancer was used as the primary blocking agent, 5% BSA (in TBS-T) was used for all other blocking steps. DAPI was used to stain the cell nuclei (blue). Alexa Fluor® 594 WGA was used to label plasma membranes (red).

- Mannose 6 Phosphate Receptor antibody [2G11] - Late Endosome Marker (ab2733)

Immunofluorescent imaging of human cells (U2OS) with ab2733 confirms the specificity of this antibody, with the expected perinuclear vesicular staining of lysosomes. 

IF was performed with a standard paraformaldehyde technique (fixed in PBS buffered PFH 4% for 5 minutes, permeabilised with 0.5% triton-PBS for 5 minutes, blocked with 5% milk / 0.2% tween for one hour.  Primary antibody used at 1/100 in 5% milk / 0.2% TWEEN for one hour, secondary antibody for 30 minutes.  All blocking and incubation steps carried out at 37 degrees.

Luke Hughes-Davies and Rhiannon Jade, Gurdon Institute, Cambridge, UK

- Mannose 6 Phosphate Receptor antibody [2G11] - Late Endosome Marker (ab2733)

Immunostained frozen sections showing that mannose 6 phosphate receptor is localised in the outermost epithelial cell layer.

This picture was kindly supplied as part of the review submitted by Marko Nykanen.

Immunocytochemistry - Mannose 6 Phosphate Receptor antibody [2G11] - Late Endosome Marker (ab2733)

Ab2733 positively staining formaldehyde fixed Human HEK 293 cells (red) in conjunction with goat anti mouse (Alexa 546). Nuclear staining was obtained using Hoechst.

This image is an edited version of an image received courtesy of an Abreview submitted by Kun Liu on 19 September 2005. We do not have any further information relating to this image.

Immunocytochemistry/ Immunofluorescence - Mannose 6 Phosphate Receptor (Cation independent) antibody [2G11] - Late Endosome Marker (ab2733)

ICC/IF image of ab2733 stained HepG2 cells. The cells were 4% PFA fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab2733, 10µg/ml) overnight at +4ºC. The secondary antibody (green) was DyLight® 488 goat anti-mouse IgG - H&L, pre-adsorbed (ab96879) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

Flow Cytometry - Anti-Mannose 6 Phosphate Receptor (Cation independent) antibody [2G11] - Late Endosome Marker (ab2733)

Overlay histogram showing HeLa cells stained with ab2733 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab2733, 1µg/1x10⁶ cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG2a [ICIGG2A] (ab91361, 2µg/1x10⁶ cells) used under the same conditions. Acquisition of >5,000 events was performed.