
Thermo Fisher Scientific CD21 Monoclonal Antibody (21A/5)
인간 CD21/CR2 단백질을 인식하는 마우스 단클론 항체로, IHC, ICC, Flow Cytometry 등 다양한 응용에 적합합니다. 비결합형 포맷이며 Protein G로 정제되었습니다. 단기 4°C, 장기 -20°C 보관이 권장됩니다. 연구용으로만 사용 가능합니다.
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Applications and Tested Dilutions
| Application | Tested Dilution |
|---|---|
| Immunohistochemistry (Paraffin) (IHC-P) | 1:500 |
| Immunohistochemistry (Frozen) (IHC-F) | Assay-dependent |
| Immunocytochemistry (ICC/IF) | 1:500 |
| Flow Cytometry (Flow) | 0.5 µg/1×10⁶ cells |
Product Specifications
| Specification | Description |
|---|---|
| Species Reactivity | Human |
| Host / Isotype | Mouse / IgG1 |
| Class | Monoclonal |
| Type | Antibody |
| Clone | 21A/5 |
| Immunogen | Mouse monoclonal antibodies raised against human CD21 |
| Conjugate | Unconjugated |
| Form | Liquid |
| Concentration | 1 mg/mL |
| Purification | Protein G |
| Storage Buffer | PBS |
| Contains | 0.02% sodium azide |
| Storage Conditions | Store at 4°C short term. For long term, store at -20°C. Avoid freeze/thaw cycles. |
| Shipping Conditions | Ambient (domestic); Wet ice (international) |
| RRID | AB_2539096 |
Available Formats
Product Specific Information
MA5-17706 targets CD21/CR2 in FACS and IHC (F) applications and shows reactivity with human samples.
The immunogen is mouse monoclonal antibodies raised against human CD21.
Target Information
CD21 (complement receptor 2, CR2, C3D receptor, EBV receptor) binds C3 complement fragments, especially its breakdown fragments, which remain covalently attached to complement activating surfaces or antigens.
CD21 plays a key role in:
- Uptake and retention of immune complexes
- Survival of memory B cells
- Development and maintenance of humoral immune responses
Additionally:
- CD21 serves as a receptor for Epstein-Barr virus (EBV) and is involved in prion targeting to follicular dendritic cells.
- Soluble CD21 (sCD21) retains ligand-binding ability after being shed from the lymphocyte surface.
- It associates with CD19, CD81, and Leu13 to form a signaling complex for B cell activation.
- Genetic variations in CD21 are linked to systemic lupus erythematosus type 9 (SLEB9).
- Alternative splicing results in different isoforms of CD21.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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