Anti-HLA-DR/HLA-DRA Antibody

• Catalog Number: orb570390
• Category: Antibodies
• Description: Anti-HLA-DR/HLA-DRA Antibody
• Species/Host: Rabbit
• Clonality: Polyclonal
• Tested applications: ELISA, FC, IHC, WB
• Reactivity: Human
• Isotype: Rabbit IgG
• Immunogen: E.coli-derived human HLA-DR/HLA-DRA recombinant protein (Position: I26-L254).
• Antibody Type: Primary Antibody
• Concentration: Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
• Form/Appearance: Lyophilized
• Conjugation: Unconjugated
• MW: 37 kDa
• UniProt ID: P01903
• Storage: Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
• Alternative names: HLA class II histocompatibility antigen, DR alpha
• Note: For research use only
• Application notes: Western blot, 0.25-0.5μg/ml, Human Immunohistochemistry (Paraffin-embedded Section), 0.5-1μg/ml, Human Flow Cytometry (Fixed), 1-3μg/1x106 cells, Human ELISA, 0.1-0.5μg/ml, -. Add 0.2ml of distilled water will yield a concentration of 500ug/ml
• Expiration Date: 12 months from date of receipt.

Flow Cytometry analysis of human PBMC cells using anti-HLA-DRA antibody. Overlay histogram showing human PBMC cells (Blue line). To facilitate intracellular staining, cells were fixed with 4% paraformaldehyde and permeabilized with permeabilization buffer. The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-HLA-DRA Antibody (1 µg/1x10^6 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (5-10 µg/1x10^6 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1 µg/1x10^6) used under the same conditions. Unlabelled sample (Red line) was also used as a control.

Flow Cytometry analysis of SW620 cells using anti-HLA-DRA antibody. Overlay histogram showing SW620 cells (Blue line). To facilitate intracellular staining, cells were fixed with 4% paraformaldehyde and permeabilized with permeabilization buffer. The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-HLA-DRA Antibody (1 µg/1x10^6 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (5-10 µg/1x10^6 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1 µg/1x10^6) used under the same conditions. Unlabelled sample (Red line) was also used as a control.

IHC analysis of HLA-DRA using anti-HLA-DRA antibody. HLA-DRA was detected in paraffin-embedded section of human duodenal adenocarcinoma tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1 µg/ml rabbit anti-HLA-DRA Antibody overnight at 4°C. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using Strepavidin-Biotin-Complex (SABC) with DAB as the chromogen.

IHC analysis of HLA-DRA using anti-HLA-DRA antibody. HLA-DRA was detected in paraffin-embedded section of human laryngeal squamous cell carcinoma tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1 µg/ml rabbit anti-HLA-DRA Antibody overnight at 4°C. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using Strepavidin-Biotin-Complex (SABC) with DAB as the chromogen.

IHC analysis of HLA-DRA using anti-HLA-DRA antibody. HLA-DRA was detected in paraffin-embedded section of human mammary cancer tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1 µg/ml rabbit anti-HLA-DRA Antibody overnight at 4°C. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using Strepavidin-Biotin-Complex (SABC) with DAB as the chromogen.

IHC analysis of HLA-DRA using anti-HLA-DRA antibody. HLA-DRA was detected in paraffin-embedded section of human mammary cancer tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1 µg/ml rabbit anti-HLA-DRA Antibody overnight at 4°C. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using Strepavidin-Biotin-Complex (SABC) with DAB as the chromogen.

IHC analysis of HLA-DRA using anti-HLA-DRA antibody. HLA-DRA was detected in paraffin-embedded section of human seminoma testis tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1 µg/ml rabbit anti-HLA-DRA Antibody overnight at 4°C. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using Strepavidin-Biotin-Complex (SABC) with DAB as the chromogen.

Western blot analysis of HLA-DRA using anti-HLA-DRA antibody. Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 30 ug of sample under reducing conditions. Lane 1: human Raji whole cell lysates, Lane 2: human Daudi whole cell lysates, Lane 3: human Ramos whole cell lysates, Lane 4: human HMy2.CIR whole cell lysates. After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-HLA-DRA antigen affinity purified polyclonal antibody at 0.5 µg/mL overnight at 4°C, then washed with TBS-0.1% Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit with Tanon 5200 system. A specific band was detected for HLA-DRA at approximately 37 kDa. The expected band size for HLA-DRA is at 29 kDa.