IRF3 Recombinant Rabbit Monoclonal Antibody [SD2062]
cat.: ET1612-14
Product Type: Recombinant Rabbit monoclonal IgG, primary antibodies
Species reactivity: Human, Mouse, Rat
Applications: WB, IF-Cell, IF-Tissue, IHC-P, FC, IP
Clonality: Monoclonal
Clone number: SD2062
Form: Liquid
Storage condition: Store at +4℃ after thawing. Aliquot store at -20℃ or -80℃. Avoid repeated freeze / thaw cycles.
Storage buffer: 1*TBS (pH7.4), 0.05% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
Concentration: 1ug/ul
Purification: Protein A affinity purified.
Molecular weight: Predicted band size: 47 kDa
Isotype: IgG
Immunogen: Synthetic peptide within Human IRF3 aa 71-120 / 427.
Positive control: HeLa cell lysate, Jurkat cell lysate, MCF7 cell lysate, A549 cell lysate, THP-1 cell lysate, Hela-si NT cell lysate, Hela-si IRF3 cell lysate, RAW264.7 cell lysate, mouse spleen tissue lysate, mouse liver tissue lysate, Hela, MCF-7, PANC-1, human breast carcinoma tissue, human kidney tissue, human pancreas tissue, human tonsil tissue, mouse colon tissue, mouse testis tissue, mouse heart tissue, rat brain tissue, rat colon tissue, rat heart tissue, rat spleen tissue.
Subcellular location: Cytoplasm, Nucleus.
Recommended Dilutions:
  WB
  IF-Cell
  IF-Tissue
  IHC-P
  FC
  IP
1:1,000-1:5,000
1:50-1:200
1:50-1:200
1:50-1:2,000
1:1,000
1-2μg/sample
Uniprot #: SwissProt: Q14653 Human | P70671 Mouse
Alternative names: IIAE7 Interferon regulatory factor 3 IRF 3 IRF-3 IRF3 IRF3_HUMAN MGC94729
Images
ET1612-14_1.jpg Fig1: Western blot analysis of IRF3 on different lysates with Rabbit anti-IRF3 antibody (ET1612-14) at 1/5,000 dilution.

Lane 1: HeLa cell lysate (15 µg/Lane)
Lane 2: Jurkat cell lysate (15 µg/Lane)
Lane 3: MCF7 cell lysate (15 µg/Lane)
Lane 4: A549 cell lysate (15 µg/Lane)
Lane 5: THP-1 cell lysate (15 µg/Lane)

Predicted band size: 47 kDa
Observed band size: 55 kDa

Exposure time: 43 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 (ET1612-14) at 1/5,000 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.
ET1612-14_2.jpg Fig2: Western blot analysis of IRF3 on different lysates with Rabbit anti-IRF3 antibody (ET1612-14) at 1/500 dilution.

Lane 1: Hela-si NT cell lysate
Lane 2: Hela-si IRF3 cell lysate

Lysates/proteins at 10 µg/Lane.

Predicted band size: 47 kDa
Observed band size: 55 kDa

Exposure time: 3 minutes;

4-20% SDS-PAGE gel.

ET1612-14 was shown to specifically react with IRF3 in Hela-si NT cells. Weakened band was observed when Hela-si IRF3 sample was tested. Hela-si NT and Hela-si IRF3 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 (ET1612-14, 1/500) and Loading control antibody (Rabbit anti-GAPDH, ET1601-4, 1/10,000) were used in 5% BSA at room temperature for 2 hours. Goat Anti-rabbit IgG-HRP Secondary Antibody (HA1001) at 1:300,000 dilution was used for 1 hour at room temperature.
ET1612-14_3.jpg Fig3: Western blot analysis of IRF3 on different lysates with Rabbit anti-IRF3 antibody (ET1612-14) at 1/1,000 dilution.

Lane 1: RAW264.7 cell lysate (20 µg/Lane)
Lane 2: Mouse spleen tissue lysate (40 µg/Lane)
Lane 3: Mouse liver tissue lysate (40 µg/Lane)

Predicted band size: 47 kDa
Observed band size: 55 kDa

Exposure time: 10 seconds; ECL: K1801;

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 (ET1612-14) 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.
ET1612-14_4.jpg Fig4: Immunocytochemistry analysis of Jurkat cells labeling IRF3 with Rabbit anti-IRF3 antibody (ET1612-14) 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-IRF3 antibody (ET1612-14) 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.
ET1612-14_5.jpg Fig5: Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue using anti-IRF3 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1612-14, 1/50) for 30 minutes 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.
ET1612-14_6.jpg Fig6: Immunohistochemical analysis of paraffin-embedded human kidney tissue using anti-IRF3 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1612-14, 1/50) for 30 minutes 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.
ET1612-14_7.jpg Fig7: Immunohistochemical analysis of paraffin-embedded human pancreas tissue using anti-IRF3 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1612-14, 1/50) for 30 minutes 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.
ET1612-14_8.jpg Fig8: Immunohistochemical analysis of paraffin-embedded human tonsil tissue using anti-IRF3 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1612-14, 1/50) for 30 minutes 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.
ET1612-14_9.jpg Fig9: Immunohistochemical analysis of paraffin-embedded mouse colon tissue with Rabbit anti-IRF3 antibody (ET1612-14) at 1/2,000 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) 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 (ET1612-14) at 1/2,000 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.
ET1612-14_10.jpg Fig10: Immunohistochemical analysis of paraffin-embedded mouse testis tissue with Rabbit anti-IRF3 antibody (ET1612-14) at 1/2,000 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) 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 (ET1612-14) at 1/2,000 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.
ET1612-14_11.jpg Fig11: Immunohistochemical analysis of paraffin-embedded mouse heart tissue with Rabbit anti-IRF3 antibody (ET1612-14) at 1/200 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) 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 (ET1612-14) 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.
ET1612-14_12.jpg Fig12: Immunohistochemical analysis of paraffin-embedded rat brain tissue with Rabbit anti-IRF3 antibody (ET1612-14) at 1/2,000 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) 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 (ET1612-14) at 1/2,000 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.
ET1612-14_13.jpg Fig13: Immunohistochemical analysis of paraffin-embedded rat colon tissue with Rabbit anti-IRF3 antibody (ET1612-14) at 1/200 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) 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 (ET1612-14) 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.
ET1612-14_14.jpg Fig14: Immunohistochemical analysis of paraffin-embedded rat heart tissue with Rabbit anti-IRF3 antibody (ET1612-14) at 1/200 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) 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 (ET1612-14) 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.
ET1612-14_15.jpg Fig15: Immunohistochemical analysis of paraffin-embedded rat spleen tissue with Rabbit anti-IRF3 antibody (ET1612-14) at 1/200 dilution.

The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) 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 (ET1612-14) 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.
ET1612-14_16.jpg Fig16: Flow cytometric analysis of Jurkat cells labeling IRF3.

Cells were fixed and permeabilized. Then stained with the primary antibody (ET1612-14, 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).
ET1612-14_17.jpg Fig17: IRF3 was immunoprecipitated from 0.2 mg Jurkat cell lysate with ET1612-14 at 2 µg/25 µl agarose. Western blot was performed from the immunoprecipitate using ET1612-14 at 1/5,000 dilution. Anti-Rabbit IgG for IP Nano-secondary antibody (NBI01H) at 1/5,000 dilution was used for 1 hour at room temperature.

Lane 1: Jurkat cell lysate (input)
Lane 2: ET1612-14 IP in Jurkat cell lysate
Lane 3: Rabbit IgG instead of ET1612-14 in Jurkat cell lysate

Blocking/Dilution buffer: 5% NFDM/TBST
Exposure time: 9 seconds; ECL: K1801
Note: All products are “FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE”.