WB
Western blot analysis of CD3 on Jurkat cell lysates with Rabbit anti-CD3 antibody at 0.5μg/ml dilution.
Lysates/proteins at 10 µg/Lane.
Predicted band size: 23 kDa
Observed band size: 23 kDa
Exposure time: 2 minutes;
15% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody at 0.5μg/ml dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody at 1:200,000 dilution was used for 1 hour at room temperature.
IHC
Immunohistochemical analysis of paraffin-embedded human lymph nodes tissue with Rabbit anti-CD3 antibody at 1/600 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody at 1/600 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
ICC/IF
Immunocytochemistry analysis of Jurkat cells labeling CD3 with Rabbit anti-CD3 antibody at 1/100 dilution.
Cells were fixed in 4% paraformaldehyde for 20 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-CD3 antibody at 1/100 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594) was used as the secondary antibody at 1/1,000 dilution.
IF-P
Immunofluorescence analysis of paraffin-embedded human lymph nodes tissue labeling CD3 with Rabbit anti-CD3 antibody at 1/100 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 10% negative goat serum for 1 hour at room temperature, washed with PBS, and then probed with the primary antibody (green) at 1/100 dilution overnight at 4 ℃, washed with PBS.
Goat Anti-Rabbit IgG H&L (iFluor™ 488) was used as the secondary antibody at 1/1,000 dilution. Nuclei were counterstained with DAPI (blue).
IP
CD3 was immunoprecipitated from 1mg/ml Jurkat whole cell lysate with at 2ug/ml dilution. Western blot was performed from the immunoprecipitate using at 1ug/ml dilution. Goat anti-Rabbit IgG-HRP antibody was used as the secondary antibody at 1/300,000 dilution.
Lane 1: Jurkat whole cell lysate 5 μg (Input).
Lane 2: CD3 antibody IP in Jurkat whole cell lysate.
Lane 3: Rabbit monoclonal IgG instead of CD3 antibody in Jurkat whole cell lysate.
Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 30 seconds.