Shopping Cart
Human peripheral blood lymphocytes were stained with 0.5 ug Biotin Anti-Human CD19 (30-0198) (solid line) or 0.5 ug Biotin Mouse IgG1 isotype control (dashed line), followed by Streptavidin PE.

Biotin Anti-Human CD19 (SJ25C1)

SKU 30-0198-U025
Regular price


task_alt Added to cart.
View Cart or Continue shopping.


The SJ25C1 antibody reacts with human CD19, a 95 kDa glycoprotein which acts as a co-receptor, along with CD21 (CR2), CD81 (TAPA-1) and CD225 (Leu13), in support of the functional B cell receptor (BCR). This complex provides antigen-specific recognition and subsequent activation of B cells to proliferate and differentiate into antibody-secreting cells (plasma cells) or memory B cells, which are crucial for secondary antigen encounter. Upon activation and tyrosine phosphorylation, the CD19 molecule can provide an anchor for cytoplasmic signaling proteins such as GRB2, SOS or PLCG2. CD19 is a lineage-differentiation marker, as its expression is detectable at the earliest B cell stages, through development, and is finally lost upon transition to mature plasma cells.

The SJ25C1 antibody is widely used as a phenotypic marker for CD19 expression on B cells, as well as on dendritic cell subsets.

Name Biotin Anti-Human CD19 (SJ25C1)
Cat. No. 30-0198
Gene ID 930
Clone SJ25C1
Isotype Mouse IgG2a, κ
Reactivity Human
Format Biotin
Application Flow Cytometry
Price calculated at checkout.