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NeoBiotechnologies
CD20/MS4A1 (B-Cell Marker) Monoclonal Antibody (MS4A1/4655)
Product Details
931-MSM15-P1
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human,
Mouse,
Rat
Host/Isotype
Mouse
/ IgG1, kappa
Class
Monoclonal
Type
Antibody
Clone
MS4A1/4655
Immunogen
A synthetic peptide from the C-terminal region of human CD20 protein (around aa 197-297)
Conjugate
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.
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.
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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; High affinity immunoglobulin epsilon receptor subunit beta; IgE Fc receptor subunit beta; 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; LEU-16; Ly-44; MS4A1; MS4A2; S7
UniProt ID: (Human) P11836, (Mouse) P19437
Entrez Gene ID: (Human) 931, (Rat) 309217, (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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