Anti-rabbit CD19 Recombinant Antibody

Originally created to support our in-house antibody discovery engine, we decided to make it available to others. Unlike our other products, this antibody was created using mouse hybridoma technology, yet still cloned and made recombinantly. Available in multiple formats, all with NullFc™ which greatly reduces background. Also available with site-specific biotinylation, which works well for CD19+ cell depletion or enrichment

Catalog Items:

  • #200101 – Mouse IgG2a, kappa NullFc™ – 50 µg – $279
  • #200102 – Human IgG1, kappa NullFc™ – 50 µg – $279
  • #200103 – Biotinylated Mouse IgG, kappa NullFc™ – 50 µg – $279


SKU N/A Category


Clone 2G04
Discovery Method Mice were immunized with purified rabbit CD19, hybridomas were screened and this clone was identified. The variable domain sequences were cloned, sequenced, and subcloned into expression vectors containing the various species and isotype constant domains
Available Formats Mouse IgG2a/kappa with NullFc™ (compatible with traditional anti-mouse secondary reagents); Human IgG1, kappa with NullFc™ (compatible with traditional anti-human secondary reagents); and Biotinylated Mouse IgG2a/kappa with NullFc™ which features 2 site-specific biotins – one near the C-terminus of each heavy chain
Host Species Mouse
Immunogen Recombinant rabbit CD19 (accession XP_002711925) extracellular domain, purified protein
Verified Reactivity Rabbit (NOT human, mouse or cynomolgus)
Verified Applications Flow Cytometry, cell depletion/enrichment (protocol below)
Concentration 0.5 mg/ml
Production Transient transfection expression system in mammalian HEK293 cells
Purification Protein A affinity chromatography
Formulation PBS pH 7.2 with 0.08% sodium azide
Storage 4° C for up to 3 months, for longer storage aliquot and store at -20° C
Target CD19
Alternate Names B-lymphocyte surface antigen B4, T-cell surface antigen Leu-12
Target Description CD19 is expressed on B lymphocytes during all phases until terminal differentiation into plasma cells. CD19 functions as a co-receptor in association with CD21 and CD81 forming a complex integral to B cell activation
Uniprot G1TWR4



The buyer of this product is prohibited from using, studying, sequencing or analyzing a product or any portion thereof to learn the respective construction, sequence, composition, design, operation or to produce a copy, reverse engineer or produce an improved version of the product or a functionally similar material. If you do not accept these terms, please contact us at to arrange for a return and full refund of un-opened product.

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