Thermo Fisher Scientific CD20 Monoclonal Antibody (L26), Alexa Fluor 488, eBioscience
인간 CD20 단백질을 인식하는 L26 단클론 항체로, Alexa Fluor 488 형광 표지. B세포 관련 악성종양 연구에 적합하며, IHC(FPPE) 등 다양한 면역염색 응용 가능. 488/520 nm 형광 특성, 4°C 보관, 동결 금지.
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Applications and Tested Dilutions
| Application | Tested Dilution | Publications |
|---|---|---|
| Western Blot (WB) | 1 µg/mL | - |
| Immunohistochemistry (IHC) | 1:100 | 5 publications |
| Immunohistochemistry (Paraffin) (IHC (P)) | 5–10 µg/mL | - |
| Immunohistochemistry (PFA fixed) (IHC (PFA)) | - | 1 publication |
| Immunohistochemistry (Frozen) (IHC (F)) | 10 µg/mL | - |
| Immunocytochemistry (ICC/IF) | 10 µg/mL | 3 publications |
| Flow Cytometry (Flow) | - | 1 publication |
| Miscellaneous PubMed (Misc) | - | 1 publication |
Product Specifications
| 항목 | 내용 |
|---|---|
| Species Reactivity | Cynomolgus monkey, Human, Rhesus monkey |
| Published Species | Human |
| Host / Isotype | Mouse / IgG2a, kappa |
| Recommended Isotype Control | Mouse IgG2a kappa Isotype Control (eBM2a), Alexa Fluor™ 488, eBioscience™ |
| Class | Monoclonal |
| Type | Antibody |
| Clone | L26 |
| Conjugate | Alexa Fluor™ 488 |
| Excitation / Emission Max | 499 / 520 nm |
| Form | Liquid |
| Concentration | 0.5 mg/mL |
| Purification | Affinity chromatography |
| Storage Buffer | PBS, pH 7.2 |
| Contains | 0.09% sodium azide |
| Storage Conditions | 4°C, store in dark, DO NOT FREEZE |
| Shipping Conditions | Ambient (domestic); Wet ice (international) |
| RRID | AB_10734357 |
Available Formats:
- Unconjugated
- Alexa Fluor 514
- Alexa Fluor Plus 647
- Alexa Fluor Plus 750
- eFluor 615
- eFluor 660
- Custom conjugation available
Product Specific Information
The monoclonal antibody L26 recognizes human CD20, a two-transmembrane spanning protein found on precursor and mature B lymphocytes. Expression is lost upon differentiation to plasma cells. CD20 levels are critical for evaluating malignant B lymphocytes including Non-Hodgkin’s Lymphoma and various B-cell leukemias.
The L26 antibody recognizes an epitope in the cytoplasmic domain, requiring tissue permeabilization for staining. Unlike antibodies recognizing extracellular domains, L26 binding is not blocked by therapeutic antibodies such as Rituximab.
Applications Reported:
- Immunohistochemical staining of frozen and formalin-fixed paraffin-embedded tissue sections.
Applications Tested:
- Tested on human FFPE tonsil with low pH antigen retrieval and effective at ≤10 µg/mL.
- Can detect subpopulations of CD20-positive cells without antigen retrieval.
- High pH antigen retrieval possible but may reduce morphology quality.
- Optimized for immunohistochemistry; not recommended for flow cytometry.
(For flow cytometry, use clone 2H7, Product #11-0209-42.)
Additional Information:
- Excitation: 488 nm; Emission: 519 nm; Laser: Blue
- Filtration: 0.2 µm post-manufacturing filtered
Target Information
CD20 is a non-glycosylated surface phosphoprotein (33–37 kDa) expressed on mature and most malignant B cells, a subset of T lymphocytes, and follicular dendritic cells. It regulates calcium conductance, cell cycle progression, and B-cell proliferation. CD20 associates with lipid rafts and remains surface-bound after antibody treatment, making it a valuable therapeutic target for B-cell depletion.
Dysfunction of CD20 is linked to Ms4a1-related common variable immune deficiency.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without authorization.
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