CD19 Rabbit Polyclonal Antibody

SKU: orb334532

Description

CD19 Rabbit Polyclonal Antibody

Research Area

Immunology & Inflammation, Stem Cell & Developmental Biology

Images & Validation

• Tested Applications: IF, IHC, WB
• Dilution Range: Western blot, 0.1-0.5μg/ml, Human Immunohistochemistry (Paraffin-embedded Section), 2-5μg/ml, Human Immunofluorescence, 5 μg/ml, Human
• Reactivity: Human

Key Properties

• Antibody Type: Primary Antibody
• Host: Rabbit
• Clonality: Polyclonal
• Isotype: Rabbit IgG
• Immunogen: A synthetic peptide corresponding to a sequence in the middle region of human CD19, different from the related mouse sequence by seven amino acids.
• Target: B-lymphocyte antigen CD19
• Molecular Weight: 95 kDa
• Purification: Immunogen affinity purified.
• Conjugation: Unconjugated

Storage & Handling

• 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.
• Form/Appearance: Lyophilized
• Buffer/Preservatives: Each vial contains 4 mg Trehalose, 0.9 mg NaCl and 0.2 mg Na2HPO4.
• Concentration: Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

Alternative Names

B-lymphocyte antigen CD19; B-lymphocyte surface antigen B4; Differentiation antigen CD19; T-cell surface antigen Leu-12; CD19; CD19

IHC analysis of CD19 using anti-CD19 antibody. CD19 was detected in a paraffin-embedded section of human appendix tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 µg/ml rabbit anti-CD19 Antibody overnight at 4°C. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using HRP Conjugated Rabbit IgG Super Vision Assay Kit with DAB as the chromogen.

Western blot analysis of CD19 using anti-CD19 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 Ramos whole cell lysates, Lane 3: human Daudi 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-CD19 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 CD19 at approximately 95 kDa. The expected band size for CD19 is at 61 kDa.

Quick Database Links

Gene Symbol

B-lymphocyte antigen CD19

UniProt

P15391