- Tel: 858.663.9055
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Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
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CD19 antibody recognizes CD19, a B cell-specific type I transmembrane glycoprotein that functions as a central coreceptor in B cell receptor signaling. CD19 Antibody Protein Microarray Validated is optimized for high-throughput protein array applications and precise detection of CD19 in multiplexed experimental systems. CD19 is a member of the immunoglobulin superfamily and is expressed from the early pro-B cell stage through mature peripheral B lymphocytes, where it localizes to the plasma membrane. By forming a signaling complex with CD21, CD81, and CD225, CD19 amplifies antigen receptor signaling and lowers the threshold for B cell activation.
The CD19 gene is located on chromosome 16p11.2 and encodes a protein containing two extracellular immunoglobulin-like domains, a single transmembrane segment, and a cytoplasmic tail enriched with tyrosine residues that become phosphorylated following activation. These phosphorylation events recruit signaling molecules such as PI3K and other adaptor proteins, promoting downstream pathways that regulate B cell proliferation, differentiation, and survival. CD19 Antibody Protein Microarray Validated supports investigations into normal B cell development and dysregulated signaling associated with immune disorders and malignancy.
In normal tissues, CD19 expression is restricted to B lineage cells within bone marrow, lymph node, tonsil, and spleen. Terminally differentiated plasma cells typically exhibit reduced or absent CD19 expression, reflecting progression through late stages of B cell maturation. Because of its lineage specificity and consistent surface expression, CD19 serves as a reliable pan-B cell marker in immunologic research and translational studies.
Aberrant CD19 expression is a defining feature of most B cell malignancies, including B cell acute lymphoblastic leukemia, chronic lymphocytic leukemia, and multiple forms of non-Hodgkin lymphoma. CD19 is also a major therapeutic target in immunotherapy strategies, including chimeric antigen receptor T cell approaches. Accurate detection of CD19 is therefore essential for research into tumor biology, immune targeting, and therapeutic development.
Clone CD19/7665 is a recombinant rabbit monoclonal antibody engineered for high specificity and reproducible performance. Protein microarray validation supports its utility in multiplexed screening platforms requiring consistent binding characteristics and low cross-reactivity. CD19 Antibody Protein Microarray Validated clone CD19/7665 provides reliable detection of CD19 in research applications requiring precision, scalability, and reproducibility.
Optimal dilution of the CD19 antibody should be determined by the researcher.
A recombinant fragment of human CD19 protein (around aa1-300) was used as the immunogen for the CD19 antibody.
Aliquot the CD19 antibody and store frozen at -20oC or colder. Avoid repeated freeze-thaw cycles.
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