Shopping Cart
C57Bl/6 splenocytes were stained with 0.5 ug  violetFluor™ 450 Anti-Mouse CD19 (75-0193) (solid line) or 0.5 ug violetFluor™ 450 Rat IgG2a isotype control (dashed line).

violetFluor™ 450 Anti-Mouse CD19 (1D3)

SKU 75-0193-U025
Regular price


task_alt Added to cart.
View Cart or Continue shopping.


The 1D3 antibody reacts with mouse CD19, a 95 kDa glycoprotein which acts as a co-receptor, along with CD21 and CD81, 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. 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 1D3 antibody is widely used as a phenotypic marker for CD19 expression on B cells, as well as on dendritic cell subsets.


Recent Citations:

Hong H, Lee J, Park GY, Kim S, Park J, Park JS, Song Y, Lee S, Kim TJ, Lee YJ, Roh TY, Kwok SK, Kim SW, Tan Q, Lee Y. Postnatal regulation of B-1a cell development and survival by the CIC-PER2-BHLHE41 axis. Cell Rep. 2022 Feb 15;38(7):110386. doi: 10.1016/j.celrep.2022.110386. PMID: 35172136.

» View on ScienceDirect

Name violetFluor™ 450 Anti-Mouse CD19 (1D3)
Cat. No. 75-0193
Alternative Names Leu-12, B4
Gene ID 12478
Clone 1D3
Isotype Rat IgG2a, κ
Reactivity Mouse
Format violetFluor™ 450
Application Flow Cytometry
Price calculated at checkout.