CD21 Protein (His tag)
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- 抗原 See all CD21 (CR2) 蛋白
- CD21 (CR2) (Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2))
- 蛋白类型
- Recombinant
- 生物活性
- Active
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宿主
- 人
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资源
- HEK-293 Cells
- 标记
- This CD21 protein is labelled with His tag.
- 原理
- Recombinant Human CD21/CR2/C3DR Protein (His Tag)(Active)
- 序列
- Met 1-Arg 971
- 产品特性
- A DNA sequence encoding the human CD21 isoform A (P20023-1) extracellular domain (Met 1-Arg 971) was expressed, with a carboxy-terminal polyhistidine tag.
- 纯度
- > 95 % as determined by reducing SDS-PAGE.
- 内毒素水平
- < 1.0 EU per μg as determined by the LAL method.
- Biological Activity Comment
- Measured by its binding ability in a functional ELISA. Immobilized human CD21 at 2 μg/ml (100 μl/well) can bind biotinylated human CD9. The EC50 of biotinylated human CD9 is 1.76 μg/ml.
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- Discover our top product CR2 蛋白
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Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2) (AA 21-971) protein (His tag)
CR2 宿主: 人 宿主: HEK-293 Cells Recombinant > 95 % as determined by Tris-Bis PAGE,> 95 % as determined by HPLC
Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2) (AA 12-963) protein (His tag)CR2 宿主: 小鼠 宿主: HEK-293 Cells Recombinant > 90 % as determined by Tris-Bis PAGE
Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2) (AA 1-70) protein (His-IF2DI Tag)CR2 宿主: 人 宿主: 大肠杆菌（E. Coli） Recombinant Greater than 95 % by SDS-PAGE gel analyses WB, ELISA
Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2) protein (Fc Tag)CR2 宿主: 人 宿主: HEK-293 Cells Recombinant The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2) (AA 21-971) protein (His tag)Crystallography grade CR2 宿主: 人 宿主: Insect Cells Recombinant >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot. WB, SDS, ELISA, Crys
Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2) (AA 12-963) protein (His tag)Crystallography grade CR2 宿主: 小鼠 宿主: Insect Cells Recombinant >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot. WB, SDS, ELISA, Crys
Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2) (AA 21-1033) protein (rho-1D4 tag)Crystallography grade CR2 宿主: 人 宿主: Insect Cells Recombinant >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot. WB, SDS, ELISA, Crys
Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2) (AA 12-1025) protein (rho-1D4 tag)Crystallography grade CR2 宿主: 小鼠 宿主: Insect Cells Recombinant >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot. WB, SDS, ELISA, Crys
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- 限制
- 仅限研究用
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- 状态
- Lyophilized
- 溶解方式
- Please refer to the printed manual for detailed information.
- 缓冲液
- Lyophilized from sterile PBS, pH 7.4
- 储存条件
- 4 °C,-20 °C,-80 °C
- 储存方法
- Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
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- 抗原
- CD21 (CR2) (Complement Component (3d/Epstein Barr Virus) Receptor 2 (CR2))
- 别名
- CD21/CR2/C3DR (CR2 产品)
- 别名
- C3DR Protein, CD21 Protein, CR Protein, CVID7 Protein, SLEB9 Protein, Cd21 Protein, cd21 Protein, CR1 Protein, CR1-L Protein, CR2 Protein, complement C3d receptor 2 Protein, complement C3b/C4b receptor 1 (Knops blood group) Protein, CR2 Protein, Cr2 Protein, CR1 Protein
- 背景
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Background: The cluster of differentiation (CD) system is commonly used as cell markers in immunophynotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 320 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. CD21, also known as Complement component (3d / Epstein Barr virus) receptor 2 and CR2, is a member of the CD system and is a protein involved in complement system. CD21 is present on all mature B-cells and some T-cells and follicular dendritic cells. CD21 on mature B-cells form a complex called the B cell receptor complex with two other membrane proteins, CD19 and CD81. CD21 has a function in the complement system through serving as the cellular receper specific for ligands such as C3 and C4 which can be attached to foreign macromolecules in order to remove or uptake them. This results in B-cells having enhanced response to the antigen.
Synonym: C3DR,CD21,CR,CVID7,SLEB9
- 分子量
- 106 kDa
- 途径
- Complement System
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