| 类型 | Monoclonal |
| 特异性 | This antibody recognizes CD19 molecules. |
| Clone号 | SJ25C1 |
| 免疫宿主 | Mouse |
| 亚型 | IgG |
| 纯化方法 | Purified by Protein A |
| 验证应用平台 | Flow Cyt |
| 状态 | Liquid |
| 缓冲液 | PBS,pH7.4 |
| 储存方式 | Shipped in ice bag. The antibody can be stored for 1-2 weeks at 2 -8°C. For long term storage, store it at -20°C. Avoid repeated freezing and thawing cycles. |
CD19 is a 95 kDa transmembrane glycoprotein that serves as a critical surface marker and functional regulator of B cells. It features two extracellular C2-type immunoglobulin-like domains and a broad cytoplasmic region involved in intracellular signaling. Expressed throughout B-cell development—from early progenitors to mature B cells—CD19 is essential for B-cell activation, proliferation, and differentiation into plasma cells. On the cell surface, it forms a co-receptor complex with CD21 and CD22, modulating B-cell receptor (BCR) signaling thresholds and enhancing cellular responses to antigens. Due to its B-cell–restricted expression and pivotal role in B-cell function, CD19 has become a key therapeutic target in hematologic malignancies, particularly in chimeric antigen receptor (CAR) T-cell therapies for B-cell acute lymphoblastic leukemia (B-ALL) and non-Hodgkin lymphoma. Its involvement in autoimmune disorders further underscores its immunological and clinical significance.
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