All lanes : HRP Anti-Scavenging Receptor SR-BI antibody [EP1556Y] (ab206233) at 1/2000 dilution

Lane 1 : Wild-type HAP1 whole cell lysate
Lane 2 : SCARB1 (Scavenging Receptor SR-BI) knockout HAP1 whole cell lysate

Lysates/proteins at 20 µg per lane.

Predicted band size: 60 kDa
Observed band size: 76 kDa why is the actual band size different from the predicted?


Exposure time: 20 minutes

ab206233 was shown to specifically react with Scavenging Receptor SR-BI in wild-type HAP1 cells as signal was lost in SCARB1 (Scavenging Receptor SR-BI) knockout cells. Wild-type and SCARB1 (Scavenging Receptor SR-BI) knockout samples were subjected to SDS-PAGE. Ab206233 and ab184095 (Mouse monoclonal [mAbcam 9484] to GAPDH - Loading Control (Alexa Fluor^® 680) loading control) were incubated overnight at 4°C at 1/2000 dilution and 1/20000 dilution respectively. The loading control was imaged using the Licor Odyssey CLx prior to blots being developed with ECL technique.

IHC image of Scavenging Receptor SR-BI staining in a section of formalin-fixed paraffin-embedded normal human liver*, performed on a Leica BOND™. The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH9, epitope retrieval solution 2) for 20mins. The section was then incubated with ab206233, 1/100 dilution, for 15 mins at room temperature. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX. The inset negative control image is taken from an identical assay without primary antibody.

For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

*Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre

HRP Anti-Scavenging Receptor SR-BI antibody [EP1556Y] (ab206233) at 1/2000 dilution + Liver (Mouse) Tissue Lysate at 10 µg

Developed using the ECL technique.

Performed under reducing conditions.

Predicted band size: 60 kDa
Observed band size: 76 kDa why is the actual band size different from the predicted?


Exposure time: 8 minutes

This blot was produced using a 4-12% Bis-tris gel under the MOPS buffer system. The gel was run at 200V for 50 minutes before being transferred onto a Nitrocellulose membrane at 30V for 70 minutes. The membrane was then blocked for an hour using 3% milk before being incubated with ab206233 overnight at 4°C. Antibody binding was visualised using ECL development solution ab133406.