CD19 Rat anti-Mouse, APC, Clone: 1D3, BD

Rat Monoclonal Antibody

Catalog Number	Mfr. No.	Quantity
BDB561738	BD Biosciences 561738	25 μg
BDB550992	BD Biosciences 550992	0.1 mg

Description

The 1D3 antibody reacts with CD19, a B lymphocyte-lineage differentiation antigen. CD19, a 95-kDa transmembrance glycoprotein, is a member of the immunoglobulin superfamily and is expressed throughout B-lymphocyte development from the pro-B cell throughthe mature B-cell stages. Terminally differentiated plasma cells do not express CD19. On the surface of mature B cells, the CD19 molecule associates with CD21 (CR-2) and CD81 (TAPA-1), and this multimolecular complex synergizes with surface immunoglobulin to promote cellular activation. Studies with CD19-deficient mice have suggested that the level of CD19 expression affects the generation and maturation of B cells in the bone marrow and periphery. B-1 lineage B cells, also known as CD5+ B cells, are drastically reduced or absent in CD19-deficient mice. Increased levels of CD19 expression correlate with increased frequencies of peritonal and splenic B-1 cells and reduced numbers of conventional B lymphocytes in the periphery. CD19 participates in B-lymphocyte development, B-cell activation, maturation of memory B cells and regulation of tolerance. CD19 has also been detected on peritoneal mast cells, co-localized with CD21/CD35, and it is proposed to play a role in complement-mediated mast-cell activation.

Specifications

• Antigen: CD19
• Concentration: 0.2mg/mL
• Classification: Monoclonal
• Host Species: Rat
• Target Species: Mouse
• Immunogen: Mouse CD19 Transfected Cell Line
• Primary or Secondary: Primary
• Content And Storage: Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

• Clone: 1D3
• Applications: Flow Cytometry
• Conjugate: APC
• Regulatory Status: RUO
• Formulation: Aqueous buffered solution containing ≤0.09% sodium azide.
• Isotype: IgG2a κ
• Purification Method: Affinity Purified

For Research Use Only.