CD19 antibodies, human

Clone: REA675 | Dilution: 1:11
REA675 recognizes the human CD19 antigen, a type I transmembrane glycoprotein of 95 kDa that belongs to the immunglobulin superfamily. CD19 is expressed on B cells throughout most stages of B cell differentiation, though its expression is down-regulated during their terminal differentiation to plasma cells. Expression of CD19 is also found in the majority of B cell–derived malignancies. CD19 is further present on follicular dendritic cells. On B cells, CD19 associates with CD21, CD81, and CD225 (Leu-13) forming a signal transduction complex.
Additional information: Clone REA675 displays negligible binding to Fc receptors.

Alternative names

B4, Leu-12

Technical specifications

  • Antigen: CD19
  • Clone: REA675
  • Isotype: recombinant human IgG1
  • Isotype control: REA Control (S) antibodies
  • Alternative names of antigen: B4, Leu-12
  • Distribution of antigen: B cells, dendritic cells
  • Product format: Reagents are supplied in buffer containing stabilizer and 0.05% sodium azide.
  • Fixation: Cells should be stained prior to fixation, if formaldehyde is used as a fixative.
  • Storage: Store protected from light at 2–8 °C. Do not freeze.
  • Available conjugates: APC, FITC
  • Selected references

    1. Nadler, L. M. et al. (1983) B4, a human B lymphocyte-associated antigen expressed on normal, mitogen-activated, and malignant B lymphocytes. J. Immunol. 131(1): 244-250
    2. Fujimoto, M. et al. (2000) CD19 regulates intrinsic B lymphocyte signal transduction and activation through a novel mechanism of processive amplification. Immunol. Res. 22(2-3): 281-298
    3. Poe, J. C. et al. (2001) CD19, CD21, and CD22: multifaceted response regulators of B lymphocyte signal transduction. Int. Rev. Immunol. 20(6): 739-762
    4. Tedder, T. F. et al. (2002) CD19-CD21 complex regulates an intrinsic Src family kinase amplification loop that links innate immunity with B-lymphocyte intracellular calcium responses. Biochem. Soc. Trans. 30(4): 807-811
Product options: 1
130-110-351

CD19-APC, human

for 30
tests
(1)
USD 128.00

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