Smad2 Recombinant Rabbit Monoclonal Antibody [SP06-05] - BSA and Azide free

Western blot analysis of Smad2 on different lysates with Rabbit anti-Smad2 antibody (HA750073) at 1/5,000 dilution.

Lane 1: HeLa cell lysate
Lane 2: HT-29 cell lysate
Lane 3: Jurkat cell lysate
Lane 4: HL-60 cell lysate

Lysates/proteins at 15 µg/Lane.

Predicted band size: 52 kDa
Observed band size: 58 kDa

Exposure time: 1 minute 20 seconds;

4-20% 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 (HA750073) at 1/5,000 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:50,000 dilution was used for 1 hour at room temperature.

Western blot analysis of Smad2 on different lysates with Rabbit anti-Smad2 antibody (HA750073) at 1/1,000 dilution.

Lane 1: Jurkat cell lysate (15 µg/Lane)
Lane 2: C2C12 cell lysate (15 µg/Lane)
Lane 3: Mouse lung tissue lysate (30 µg/Lane)
Lane 4: Mouse placenta tissue lysate (30 µg/Lane)

Predicted band size: 52 kDa
Observed band size: 58 kDa

Exposure time: 1 minute 21 seconds;

4-20% 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 (HA750073) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.

☑ Knockout (KO)

Western blot analysis of Smad2 with anti-Smad2 antibody (HA750073) at 1:500 dilution.
Lane 1: Wild-type HaCaT whole cell lysate (15 µg).
Lane 2: Smad2 knockout HaCaT whole cell lysate (15 µg).

HA750073 was shown to specifically react with Smad2 in wild-type HaCaT cells. NO band was observed when Smad2 knockout sample was tested. Wild-type and Smad2 knockout samples were subjected to SDS-PAGE. Proteins were transferred to a PVDF membrane and blocked with 5% NFDM in TBST for 1 hour at room temperature. The primary antibody (HA750073, 1:500) was used in 5% BSA at room temperature for 2 hours. Goat anti-Rabbit IgG-HRP antibody at 1:10,000 dilution was used for 1 hour at room temperature.

Immunohistochemical analysis of paraffin-embedded human cerebellum tissue with Rabbit anti-Smad2 antibody (HA750073) at 1/200 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 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 (HA750073) at 1/200 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.

Immunohistochemical analysis of paraffin-embedded mouse cerebellum tissue with Rabbit anti-Smad2 antibody (HA750073) at 1/1,000 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 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 (HA750073) at 1/1,000 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.

Immunohistochemical analysis of paraffin-embedded rat cerebellum tissue with Rabbit anti-Smad2 antibody (HA750073) at 1/200 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 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 (HA750073) at 1/200 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.

Immunocytochemistry analysis of HepG2 cells labeling Smad2 with Rabbit anti-Smad2 antibody (HA750073) 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-Smad2 antibody (HA750073) at 1/100 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) 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 (M1305-2, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594, HA1126) was used as the secondary antibody at 1/1,000 dilution.

Immunocytochemistry analysis of NIH/3T3 cells labeling Smad2 with Rabbit anti-Smad2 antibody (HA750073) 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-Smad2 antibody (HA750073) at 1/100 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) 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 (M1305-2, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594, HA1126) was used as the secondary antibody at 1/1,000 dilution.

Flow cytometric analysis of HepG2 cells labeling Smad2.

Cells were fixed and permeabilized. Then stained with the primary antibody (HA750073, 1/1,000) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody (HA1121) at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black).

Flow cytometric analysis of NIH/3T3 cells labeling Smad2.

Cells were fixed and permeabilized. Then stained with the primary antibody (HA750073, 1/1,000) (red) compared with Rabbit IgG Isotype Control (green). After incubation of the primary antibody at +4℃ for an hour, the cells were stained with a iFluor™ 488 conjugate-Goat anti-Rabbit IgG Secondary antibody (HA1121) at 1/1,000 dilution for 30 minutes at +4℃. Unlabelled sample was used as a control (cells without incubation with primary antibody; black).