CD20 Recombinant Mouse Monoclonal Antibody (18B12), Invitrogen™

Mouse Recombinant Monoclonal Antibody

Supplier:  Thermo Scientific MA548175

Catalog No. PIMA548175

Description

Specificity: This antibody is specific for murine CD20, which is a cell surface 33-37 (depending on the degree of phosphorylation) kDa non-glycosylated surface phosphoprotein expressed on mature and most malignant B cells, but not stem cells or plasma cells.

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.

Specifications

• Antigen: CD20
• Classification: Recombinant Monoclonal
• Concentration: 1 mg/mL
• Formulation: PBS with 0.02% ProClin 300
• Gene Accession No.: P19437
• Gene Symbols: Ms4a1
• Immunogen: This antibody was generated by immunizing CD20-/- mice with CD20-transfected cell lines (300.18 and 70Z3) and CD20-peptide-keyhole limpet hemocyanin conjugate.
• Quantity: 200 μg
• Primary or Secondary: Primary
• Target Species: Mouse
• Form: Liquid

• Applications: Flow Cytometry, Functional Assay, Immunocytochemistry, Western Blot
• Clone: 18B12
• Conjugate: Unconjugated
• Gene: Ms4a1
• Gene Alias: AA960661; APY; ATOPY; B1; 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 cell surface protein; CD20 receptor; CVID5; EGK_06167; 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; LEU-16; Leukocyte surface antigen Leu-16; Ly44; Ly-44; Lymphocyte antigen 44; membrane spanning 4-domains A1; 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; MS4A1; MS4A2; S7
• Host Species: Mouse
• Purification Method: Affinity chromatography
• Regulatory Status: RUO
• Gene ID (Entrez): 12482
• Content And Storage: Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
• Isotype: IgG1 κ