

| Catalog No. | HB939014 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Description |
Anti-Human CD21/CR2 Polyclonal Antibody (HB939014) is a rabbit polyclonal antibody detecting CD21 in ELISA, IHC, WB. Suitable for Human.
Highlights
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| Species reactivity | Human | ||||||||
| Applications | ELISA, IHC, WB | ||||||||
| Host species | Rabbit | ||||||||
| Isotype | IgG | ||||||||
| Clonality | Polyclonal | ||||||||
| Immunogen | E. coli - derived recombinant Human CD21/CR2 (Lys729-Asp958). | ||||||||
| Target | Complement receptor type 2, Cr2, Complement C3d receptor, Epstein-Barr virus receptor, EBV receptor, CD21, CR2, C3DR | ||||||||
| Endotoxin level | Please contact with the lab for this information. | ||||||||
| Observed Molecular Weight | ~140 kDa | ||||||||
| Purification | Purified by antigen affinity column. | ||||||||
| Accession | P20023 | ||||||||
| Form | Liquid | ||||||||
| Storage buffer | 0.01M PBS, pH 7.4, 50% Glycerol, 0.05% Proclin 300. Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA. |
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| Product Usage Information |
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| Stability and Storage | Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt. | ||||||||
| Background | Complement receptor type 2 (CD21/CR2) is a ~112 kDa protein. 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. Also induces 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. 1. Delcayre, AX. et al. (1991) The EMBO journal 10, 919-26. PMID: 1849076 2. van den Elsen, JM. et al. (2011) Science (New York, N.Y.) 332, 608-11. PMID: 21527715 3. Barel, M. et al. (1995) Molecular immunology 32, 389-97. PMID: 7753047 4. Bradbury, LE. et al. (1992) Journal of immunology (Baltimore, Md. : 1950) 149, 2841-50. PMID: 1383329 5. Franco, A. et al. (2018) International immunology 30, 569-578. PMID: 30107486 6. Barel, M. et al. (2003) European journal of immunology 33, 2557-66. PMID: 12938232 7. Aubry, JP. et al. (1992) Nature 358, 505-7. PMID: 1386409 | ||||||||
| Note | For research use only |




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