| Applications: | WB |
| Note: | STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. |
| Short Description : | CD21 Positive Control is synthetically produced from the sequence and is suitable for use in western blot applications. |
| Formulation: | Provided as 100 uL ready-to-use, in SDS-PAGE sample buffer (Laemelli's buffer) containing Tris, pH 6.8, 1 % SDS, Glycerol and Bromophenolblue blue as tracking dye. The sample is reduced by adding 2% beta mercaptoethanol. The protein concentration is |
| Dilution Range: | WB: 1:500 |
| Storage Instruction: | Store at-20°C for long term storage. Avoid freeze-thaw cycles. |
| Tissue Specificity | Mature B-lymphocytes, T-lymphocytes, pharyngeal epithelial cells, astrocytes and follicular dendritic cells of the spleen. |
| Function | Serves as a receptor for various ligands including complement component CD3d, HNRNPU OR IFNA1. When C3d is bound to antigens, attaches to C3d on B-cell surface and thereby facilitates the recognition and uptake of antigens by B-cells. This interaction enhances B-cell activation and subsequent immune responses. Forms a complex with several partners on the surface of B-cells including CD19, FCRL5 and CD81, to form the B-cell coreceptor complex that plays a crucial role in B-cell activation and signaling. Induces also specific intracellular signaling separately from the BCR and CD19 by activating the tyrosine kinase SRC, which then phosphorylates nucleolin/NCL and triggers AKT and GSK3 kinase activities in a SYK/CD19-independent manner. Acts as a ligand for CD23 (FcepsilonRII), a low-affinity receptor for IgE, which is expressed on B-cells and other immune cells, and thus participates in the regulation of IgE production. (Microbial infection) Acts as a receptor for Epstein-Barr virus. |
| Peptide Name | Complement Receptor Type 2 Cr2 Complement C3d Receptor Epstein-Barr Virus Receptor Ebv Receptor Cd Antigen Cd21 |
| Database Links | Reactome: R-HSA-977606 |
| Cellular Localisation | Cell Membrane Single-Pass Type I Membrane Protein |
| Alternative Peptide Names | Complement Receptor Type 2 protein Cr2 protein Complement C3d Receptor protein Epstein-Barr Virus Receptor protein Ebv Receptor protein Cd Antigen Cd21 protein CR2 protein C3DR protein |
Information sourced from Uniprot.org