CD19 antibody
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- Target See all CD19 Antibodies
- CD19 (CD19 Molecule (CD19))
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Reactivity
- Mouse
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Host
- Rat
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Clonality
- Monoclonal
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Conjugate
- This CD19 antibody is un-conjugated
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Application
- Flow Cytometry (FACS), Immunoprecipitation (IP), Immunohistochemistry (Frozen Sections) (IHC (fro)), Functional Studies (Func)
- Brand
- BD Pharmingen™
- Purification
- The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
- Sterility
- 0.2 μm filtered
- Endotoxin Level
- Endotoxin level is ≤ 0.01 EU/μg (≤ 0.001 ng/μg) of protein as determined by the LAL assay.
- Immunogen
- Mouse CD19 Transfected Cell Line
- Clone
- 1D3
- Isotype
- IgG2a kappa
- Top Product
- Discover our top product CD19 Primary Antibody
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- Restrictions
- For Research Use only
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- Format
- Liquid
- Concentration
- 1.0 mg/mL
- Buffer
- No azide/low endotoxin: Aqueous buffered solution containing no preservative, 0.2μm sterile filtered.
- Preservative
- Azide free
- Storage
- 4 °C
- Storage Comment
- Store undiluted at 4°C. This preparation contains no preservatives, thus it should be handled under aseptic conditions.
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A role for CD21/CD35 and CD19 in responses to acute septic peritonitis: a potential mechanism for mast cell activation." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 165, Issue 12, pp. 6915-21, (2000) (PubMed).
: "CD19 and CD22 expression reciprocally regulates tyrosine phosphorylation of Vav protein during B lymphocyte signaling." in: Proceedings of the National Academy of Sciences of the United States of America, Vol. 94, Issue 24, pp. 13158-62, (1998) (PubMed).
: "Regulation of B lymphocyte development and activation by the CD19/CD21/CD81/Leu 13 complex requires the cytoplasmic domain of CD19." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 159, Issue 7, pp. 3278-87, (1997) (PubMed).
: "CD19-regulated signaling thresholds control peripheral tolerance and autoantibody production in B lymphocytes." in: The Journal of experimental medicine, Vol. 186, Issue 11, pp. 1923-31, (1997) (PubMed).
: "CD19 expression levels regulate B lymphocyte development: human CD19 restores normal function in mice lacking endogenous CD19." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 158, Issue 10, pp. 4662-9, (1997) (PubMed).
: "The signaling activity of murine CD19 is regulated during cell development." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 157, Issue 1, pp. 48-56, (1996) (PubMed).
: "Self-renewal of B-1 lymphocytes is dependent on CD19." in: European journal of immunology, Vol. 26, Issue 1, pp. 238-42, (1996) (PubMed).
: "CD19 regulates B lymphocyte signaling thresholds critical for the development of B-1 lineage cells and autoimmunity." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 157, Issue 10, pp. 4371-8, (1996) (PubMed).
: "Abnormal B lymphocyte development, activation, and differentiation in mice that lack or overexpress the CD19 signal transduction molecule." in: Immunity, Vol. 3, Issue 1, pp. 39-50, (1995) (PubMed).
: "Impairment of T-cell-dependent B-cell responses and B-1 cell development in CD19-deficient mice." in: Nature, Vol. 376, Issue 6538, pp. 352-5, (1995) (PubMed).
: "The CD19/CD21 signal transduction complex of B lymphocytes." in: Immunology today, Vol. 15, Issue 9, pp. 437-42, (1994) (PubMed).
: "The CD19-CR2-TAPA-1 complex, CD45 and signaling by the antigen receptor of B lymphocytes." in: Current opinion in immunology, Vol. 5, Issue 3, pp. 341-8, (1993) (PubMed).
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A role for CD21/CD35 and CD19 in responses to acute septic peritonitis: a potential mechanism for mast cell activation." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 165, Issue 12, pp. 6915-21, (2000) (PubMed).
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- Target
- CD19 (CD19 Molecule (CD19))
- Alternative Name
- CD19 (CD19 Products)
- Background
- The 1D3 antibody reacts with CD19, a B lymphocyte-lineage differentiation antigen. CD19, a 95-kDa transmembrance glycoprotein, is a member of the immunoglobulin superfamily and is expressed throughout B-lymphocyte development from the pro-B cell through the mature B-cell stages. Terminally differentiated plasma cells do not express CD19. On the surface of mature B cells, the CD19 molecule associates with CD21 (CR-2) and CD81 (TAPA-1), and this multimolecular complex synergizes with surface immunoglobulin to promote cellular activation. Studies with CD19-deficient mice have suggested that the level of CD19 expression affects the generation and maturation of B cells in the bone marrow and periphery. B-1 lineage B cells, also known as CD5+ B cells, are drastically reduced or absent in CD19-deficient mice. Increased levels of CD19 expression correlate with increased frequencies of peritonal and splenic B-1 cells and reduced numbers of conventional B lymphocytes in the periphery. CD19 participates in B-lymphocyte development, B-cell activation, maturation of memory B cells and regulation of tolerance. CD19 has also been detected on peritoneal mast cells, co-localized with CD21/CD35, and it is proposed to play a role in complement-mediated mast-cell activation.
- Pathways
- Fc-epsilon Receptor Signaling Pathway, EGFR Signaling Pathway, Neurotrophin Signaling Pathway
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