Rhesus Macaque CD19 (C-Fc, HEK293)
产品说明书
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同义名 : | 重组恒河猴CD19蛋白(C-Fc, HEK293) ;Recombinant Rhesus Macaque CD19 (C-Fc, HEK293); B-Lymphocyte Antigen CD19; B-Lymphocyte Surface Antigen B4; Differentiation Antigen CD19; T-Cell Surface Antigen Leu-12; CD19 |
| CAS号 : | N/A | |
| 货号 : | A2925356 | |
| 分子式 : | - | |
| 纯度 : | 95% determined by reducing SDS-PAGE. | |
| 分子量 : | 57.2 KDa | |
| MDL号 : | - | |
| 存储条件： |
Pure form Sealed in dry, store in freezer, under -20°C In solvent -20°C:3-6个月-80°C:12个月 |
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| 溶解度 : | - |
| 生物活性 | |||
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| 描述 | CD19 is a single-pass type I membrane protein containing 2 Ig-like C2-type (immunoglobulin-like) domains. CD19 is expressed on follicular dendritic cells and B cells. In fact, it is present on B cells from earliest recognizable B-lineage cells during development to B-cell blasts but is lost on maturation to plasma cells. CD19 primarily acts as a B cell co-receptor in conjunction with CD21 and CD81. Upon activation, the cytoplasmic tail of CD19 becomes phosphorylated, which leads to binding by Src-family kinases and recruitment of PI-3 kinase. CD19 Assembles with the antigen receptor of B lymphocytes in order to decrease the threshold for antigen receptor-dependent stimulation. Defects in CD19 are the cause of immunodeficiency common variable type 3 (CVID3) which is a primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen. | ||