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宿主来源
Mouse抗原名称
CD19分子别名
B-lymphocyte antigen CD19; B-lymphocyte surface antigen B4; Differentiation antigen CD19; T-cell surface antigen Leu-12细胞定位
Cell membraneAccession
P15391克隆号
S-R503-2抗体类型
Mouse mAb抗体同种型
IgG1反应种属 ?
Hu阳性样本
Human PBMC纯化方式
Protein G浓度
0.2 mg/ml标记
FITC性状
Liquid缓冲体系
PBS, 1% BSA, 0.3% Proclin 300
储存条件
12 months from date of receipt / reconstitution, 2 to 8 °C as supplied
应用
FCM
稀释度
应用 稀释度 推荐种属 FCM 5μl per million cells in 100μl volume Hu
CD19, also known as B-lymphocyte antigen CD19 or B-Lymphocyte Surface Antigen B4, is a 95 kDa type I transmembrane glycoprotein that belongs to the immunoglobulin superfamily and is encoded by the CD19 gene. It is primarily expressed on all B lineage cells, from early pro-B cells to plasma cells, and plays a crucial role in B cell development, activation, and signaling. As a co-receptor, CD19 enhances signaling through the B cell receptor (BCR) complex, lowering the threshold for B cell activation and promoting B cell proliferation and differentiation. It forms a complex with CD21, CD81, and other proteins, which helps in the recognition of antigens tagged with complement and amplifies BCR signaling. CD19 is also a biomarker for B cell-related diseases and a target for immunotherapies, including monoclonal antibodies and CAR-T cell therapies, due to its consistent expression on B cells and B cell malignancies.
流式分析
Flow cytometric analysis of Human CD19 expression on Human PBMC. Human PBMC (peripheral blood mononuclear cells) were stained with either FITC Mouse IgG1 Isotype Control (Left panel) or FITC Mouse Anti-Human CD19 Antibody (Right panel) at 1.25 μl/test. Flow cytometry and data analysis were performed using BD FACSymphony™ A1 and FlowJo™ software.
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