CD20 Protein, Human, Recombinant (Flag) is expressed in HEK293 mammalian cells with C-Flag tag. The predicted molecular weight is 33-37 kDa and the accession number is P11836.
规格 | 价格/CNY | 货期 | 数量 | |
---|---|---|---|---|
10 μg | ¥ 2,960 | 5日内发货 | ||
50 μg | ¥ 8,900 | 5日内发货 | ||
500 μg | ¥ 47,100 | 5日内发货 | ||
1 mg | ¥ 70,600 | 5日内发货 |
生物活性 | 1. Loaded Anti-Human CD20 mAb-Fc on AHC Biosensor, can bind Human CD20-Flag with an affinity constant of 3.47 pM as determined in BLI assay. (Regularly tested) 2. Immobilized Human CD20-Flag at 2μg/ml (100 μl/well) can bind Anti-Human CD20 mAb . The ED50 of Anti-Human CD20 mAb is 11.09 ng/ml. (Regularly tested) |
产品描述 | CD20 Protein, Human, Recombinant (Flag) is expressed in HEK293 mammalian cells with C-Flag tag. The predicted molecular weight is 33-37 kDa and the accession number is P11836. |
种属 | Human |
表达系统 | HEK293 Cells |
标签 | C-Flag |
蛋白编号 | P11836 |
别名 | B-lymphocyte surface antigen B1, B-lymphocyte antigen CD20, Membrane-spanning 4-domains subfamily A member 1, MS4A1, Leukocyte surface antigen Leu-16, Bp35, CD20 |
氨基酸序列 | Met1-Pro297 |
蛋白构建 | Met1-Pro297 |
蛋白纯度 | Greater than 70% as determined by reducing SDS-PAGE. (QC verified) |
分子量 | 33-37 kDa, reducing conditions |
内毒素 | < 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
缓冲液 | Supplied as a 0.2 μm filtered solution of 50 mM HEPES, 150 mM NaCl, 0.06% DDM, 0.012% CHS, 10% Glycerol, pH 7.4. |
存储 |
Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
运输方式 |
In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice. |
研究背景 | CD20 is a 33-37 kDa non-glycosylated protein expressed on the surface of normal and malignant B lymphocytes, and belongs to the MS4A (membrane-spanning 4-domain family A) protein family. CD20 protein consists of four hydrophobic transmembrane domains, one intracellular and two extracellular domains (large and small loops) with both N- and C- termini residing within the cytosol. CD20 is also known to be physically coupled to major histocompatibility complex class II (MHCII), CD40 molecule, BCR, and the C-terminal src kinase-binding protein (CBP) that interacts with Src kinases such as LYN, FYN, and LCK. CD20 deficiency resulted in a reduced number of circulating memory B cells, reduced isotype switching of Ig, and decreased IgG antibody levels. In agreement with this observation, challenging the patient’s primary B cells in vitro using T-dependent and Tindependent antigens led to the normal proliferation and secretion of IgM but reduced production of IgG. |
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CD20 Protein, Human, Recombinant (Flag) B-lymphocyte surface antigen B1 B-lymphocyte antigen CD20 Membrane-spanning 4-domains subfamily A member 1 MS4A1 Leukocyte surface antigen Leu-16 CD-20 CD 20 Bp35 CD20 recombinant recombinant-proteins proteins protein