CD19 antibodies

CD19 antibodies

Clone: LT19
LT19 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.


Reagent can be used for immunophenotyping by flow cytometry. Abnormal numbers of cells expressing this antigen or aberrant expression levels of the antigen can be expected in some disease states. It is important to understand the normal expression pattern for this antigen and its relationship to expression of other relevant antigens in order to perform appropriate analysis.
Expression of CD19 may be used as aid to diagnostic in the characterization of samples from individuals suspected with hematologic neoplasia.

Alternative Names


Technical specifications

  • Antigen: CD19
  • Clone: LT19
  • Isotype: mouse IgG1
  • Alternative names of antigen: B4
  • Molecular mass of antigen [kDa]: 58
  • Distribution of antigen: B cells, dendritic cells
  • Product format: Reagents are supplied in buffer containing stabilizer and 0.05% sodium azide.
  • Storage: Store protected from light at 2–8 °C. Do not freeze.
  • Available conjugates: PE, VioBlue
Product options: 2

Product information

Order no.


  • LT19
  • CE–IVD
for 100
EUR 530,00 


  • LT19
  • CE–IVD
for 100
EUR 543,00