Mouse Anti-Mouse CD19-FITC

The purified (UNLB) antibody is supplied as 0.5 mg of purified immunoglobulin in 1.0 mL of 100 mM borate buffered saline, pH 8.2. No preservatives or amine-containing buffer salts added. Store at 2- 8 °C. <br>The fluorescein (FITC) conjugate is supplied as 0.5 mg in 1.0 mL of PBS/NaN3. Store at 2-8 °C. <br>The biotin (BIOT) conjugate is supplied as 0.5 mg in 1.0 mL of PBS/NaN3. Store at 2-8 °C. <br>The R-phycoerythrin (R-PE) and allophycocyanin (APC) conjugates are supplied as 0.1 mg in 1.0 mL of PBS/NaN3 and a stabilizing agent. Store at 2-8 °C. Do not freeze! <br>The Spectral Red (SPRD), R-phycoerythrin-Cyanine 5.5 (R-PE-CY 5.5), Allophycocyanin-Cyanine 5.5 (APC-CY 5.5), and Allophycocyanin- Cyanine 7 (APC-CY 7) conjugates are supplied as 0.1 mg in 1.0 mL of PBS/NaN3 and a stabilizing agent. Store at 2-8 °C. Do not freeze! <br>Protect conjugated forms from light. Each reagent is stable for the period shown on the bottle label if stored as directed.

CD19 B cell differentiation antigen, Mr 95 kDa<br>CD19 is a monomeric transmembrane glycoprotein expressed at relatively constant levels throughout B cell development from early pro-B/pre-B cells (i.e., B220^+/CD43^+/HSA^+) through fully differentiated B cell stages. ^1-7 Terminally differentiated plasma cells do not express CD19. ^1 In humans, the CD19 molecule on the surface of mature B cells associates with CD21 (CR-2) and CD81 (TAPA-1), and this multimolecular complex synergizes with surface immunoglobulin to provide signal transduction and promote cellular activation. ^3, 4 All splenic and peritoneal IgM^+ cells of both B-1 and B-2 lineages are CD19^+, with B-1 cells expressing higher levels of CD19 than B-2 cells in these sites. ^1, 7 Recent studies with CD19-deficient mice have suggested that this molecule may not be required for normal generation and maturation of B cells in the bone marrow. ^7

[CD19; B-lymphocyte antigen CD19; B-lymphocyte antigen CD19; OTTHUMP00000122551; differentiation antigen CD19; T-cell surface antigen Leu-12; B-lymphocyte surface antigen B4; CD19 molecule; B-lymphocyte surface antigen B4; Differentiation antigen CD19; T-cell surface antigen Leu-12]