Thermo Fisher Scientific CD20/MS4A1 (B-Cell Marker) Recombinant Rabbit Monoclonal Antibody (MS4A1/7015R)

Applications

Tested Dilution

Publications

Western Blot (WB)

1-2 µg/mL

-

Immunohistochemistry (Paraffin) (IHC (P))

1-2 µg/mL

-

Immunoelectrophoresis (IE)

Assay-dependent

-

Product Specifications

Species Reactivity

Dog, Human

Host/Isotype

Rabbit / IgG, kappa

Expression System

HEK293 cells

Class

Recombinant Monoclonal

Type

Antibody

Clone

MS4A1/7015R

Immunogen

Recombinant fragment (around aa 97-297) corresponding to C-terminal of human CD20 protein. if (typeof window.$mangular === undefined || !window.$mangular) { window.$mangular = {}; } $mangular.antigenJson = \[{targetFamily:CD20,uniProtId:P11836-1,ncbiNodeId:9606,antigenRange:97-297,antigenLength:297,antigenImageFileName:931-RBM19-P1_CD20_P11836-1_Rabbit.svg,antigenImageFileNamePDP:931-RBM19-P1_CD20_P11836-1_Rabbit_PDP.jpeg,sortOrder:1}\]; $mangular.isB2BCMGT = false; $mangular.isEpitopesModalImageMultiSizeEnabled = true;

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Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

200 µg/mL

Purification

Protein A

Storage buffer

PBS with 0.05% BSA

Contains

0.05% sodium azide

Storage conditions

4° C

Shipping conditions

Ambient (domestic); Wet ice (international)

Product Specific Information

Antibody is stable for 24 months.

Positive Control: Daudi, Raji or U266 cells. Human lymphocytes. Human lymph node or tonsil. Cellular Localization: Cell surface.

Specificity Comments: Recognizes a protein of 30-33kDa, which is identified as CD20. It is a non-Ig differentiation antigen of B-cells and its expression is restricted to normal and neoplastic B-cells, being absent from all other leukocytes and tissues. CD20 is expressed by pre B-cells and persists during all stages of B-cell maturation but is lost upon terminal differentiation into plasma cells. This MAb can be used for immunophenotyping of leukemia and malignant cells, B lymphocyte detection in peripheral blood and B cell localization in tissues. It reacts with the majority of B-cells present in peripheral blood and lymphoid tissues and their derived lymphomas. In lymphoid tissue, germinal center blasts and B-immunoblasts are particularly reactive. It is a reliable antibody for ascribing a B-cell phenotype in known lymphoid tissues. Rarely, CD20-positive T-cell lymphomas have been reported. Reactivity has also been noted with Reed-Sternberg cells in cases of Hodgkin s disease, particularly of lymphocyte predominant type.

Expected to react with Monkey, Baboon, Gorilla and Chimpanzee

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.