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Invitrogen
CD20 Monoclonal Antibody (L26), eFluor™ 615, eBioscience™
Product Details
42-0202-82
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Cynomolgus monkey,
Human,
Mouse,
Rhesus monkey
Published species
Human,
Non-human primate
Host/Isotype
Mouse
/ IgG2a, kappa
Recommended Isotype Control
Class
Monoclonal
Type
Antibody
Clone
L26
Conjugate
Excitation/Emission Max
595/614 nm
View spectra
Form
Liquid
Concentration
0.2 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_10853517
Product Specific Information
Description: 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. The levels of CD20 are critical in evaluating malignant B lymphocytes including Non-Hodgkin's Lymphoma, and Acute B cell, Chronic Lymphocytic and Hairy-Cell Leukemias. CD20 plays a role in B cell differentiation and activation. The structure of the protein shows a small extracellular loop with the carboxy and amino termini in the cytoplasmic compartment. The L26 antibody recognizes an epitope in the cytoplasmic domain and therefore requires permeabilization of the tissue for staining applications. Unlike many anti-CD20 antibodies that recognize the extracellular domain, the epitope recognized by L26 will not be blocked by therapeutic antibodies to CD20, like Rituximab.
Applications Reported: This L26 antibody has been reported for use in immunohistochemical staining of formalin-fixed paraffin embedded (FFPE) tissue sections (IHC-P).
Applications Tested: This L26 antibody has been tested immunohistochemistry on FFPE human tonsil with low pH antigen retrieval. It is recommended that this antibody be carefully titrated for optimal performance in the assay of interest. This product has not been validated for flow cytometric analysis.
Filter Recommendation: When using this eFluor® 615 antibody conjugate, we recommend a filter that will capture the 615 emission wavelength (for example, Excitation 560/55, 585LP, Emission 645/75). A standard Alexa Fluor® 594 filter is acceptable.
Excitation: 595 nm; Emission: 615 nm.
Filtration: 0.2 µm post-manufacturing filtered.
Target Information
CD20 is a non-glycosylated surface phosphoprotein that has a molecular weight range of 33-37 kDa depending on the degree of phosphorylation. CD20 is expressed on mature and most malignant B cells, in a subpopulation of T lymphocytes and follicular dendritic cells. CD20 expression on B cells is synchronous with the expression of surface IgM and it regulates transmembrane calcium conductance, cell cycle progression and B-cell proliferation. CD20 is also associated with lipid rafts, but the intensity of this association depends on extracellular triggering, employing CD20 conformational change, and/or BCR (B cell antigen receptor) aggregation. After the receptor ligation, BCR and CD20 colocalize and then rapidly dissociate before BCR endocytosis, whereas CD20 remains at the cell surface. CD20 serves as a useful target for antibody-mediated therapeutic depletion of B cells, as it is expressed at high levels on most B-cell malignancies, but does not become internalized or shed from the plasma membrane following monoclonal antibody treatment. Diseases associated with CD20 dysfunction include Ms4a1-related common variable immune deficiency.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Bioinformatics
Protein Aliases: APY; ATOPY; B-cell differentiation antigen Ly-44; B-lymphocyte antigen CD20; B-lymphocyte cell-surface antigen B1; B-lymphocyte surface antigen B1; Bp35; CD20; CD20 antigen; CD20 receptor; Fc epsilon receptor I beta chain; Fc Fragment of IgE high affinity I receptor for beta polypeptide; FCER1B; IGEL; IGER; IGHER; LEU16; Leukocyte surface antigen Leu-16; Ly44; Lymphocyte antigen 44; Membrane-spanning 4-domains subfamily A member 1; membrane-spanning 4-domains, subfamily A, member 1; membrane-spanning 4-domains, subfamily A, member 2; MGC3969
Gene Aliases: AA960661; B1; Bp35; CD20; CVID5; EGK_06167; LEU-16; Ly-44; MS4A1; MS4A2; S7
UniProt ID: (Human) P11836, (Mouse) P19437
Entrez Gene ID: (Human) 931, (Rhesus monkey) 696843, (Cynomolgus monkey) 102118491, (Mouse) 12482
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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