Proteintech, 65562-1-MR, Anti-Human CD19 (4G7) Mouse IgG2a Recombinant Antibody

65562-1-MR targets CD19 in FC applications and shows reactivity with human samples.
Tested Applications
Positive FC detected in: human PBMCs
Recommended dilution
Flow Cytometry (FC): FC : 0.25 ug per 10^6 cells in a 100 µl suspension
Background Information
CD19 is a 95 kDa type I transmembrane glycoprotein belonging to the immunoglobulin superfamily (PMID: 2472450). It is expressed by B cells and follicular dendritic cells. CD19 is up-regulated at the step of B-lineage commitment during the differentiation of the hematopoietic stem cell, it remains on during subsequent stages of differentiation until finally down-regulated during terminal differentiation into plasma cells (PMID: 8528044). CD19 is involved in B cell development, activation and differentiation. It is the dominant component for the signaling complex on B cells that includes CD21 (CR2), CD81 (TAPA-1) and CD225 and acts as a critical co-receptor for BCR signal transduction (PMID: 23210908).