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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免疫原
Recombinant Protein细胞定位
Cell membraneAccession
P15391克隆号
S-1039-46抗体类型
Mouse mAb抗体同种型
IgG1,k同型对照
S0B1542反应种属 ?
Hu阳性样本
Human peripheral blood leukocytes纯化方式
Protein G浓度
0.2 mg/ml标记
Pacific Blue性状
Liquid缓冲体系
PBS, 1% BSA, 0.09% sodium azide
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 CD19 expression on human peripheral blood leukocytes. Human peripheral blood leukocytes were stained with Alexa Fluor® 647 Mouse Anti-Human CD3 Antibody and either Pacific Blue Mouse IgG1, κ Isotype Control (left panel) or SDT Pacific Blue Mouse Anti-Human CD19 Antibody (right panel) at 5 μl/test. Flow cytometry and data analysis were performed using Agilent NovoCyte Quanteon and FlowJo™ software.
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