Anti-CD20 / MS4A1 (B-Cell Marker)

Anti-CD20 / MS4A1 (B-Cell Marker)

• Description: Recognizes a protein of 30-33 kDa, 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 antibody 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. Primary antibodies are available purified, or with a selection of fluorescent CF® Dyes and other labels. CF® Dyes offer exceptional brightness and photostability. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.
• Synonyms: APY; ATOPY; B-lymphocyte antigen CD20; B-lymphocyte cell-surface antigen B1; Bp35; 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; Membrane spanning 4 domains subfamily A member 2; Membrane-spanning 4-domains subfamily A member 1 (MS4A1)
• CAS Number: 9007-83-4
• UNSPSC: 41116161
• UNSPSC Description: Primary and secondary antibodies for multiple methodology immunostaining detection application
• Gene Name: MS4A1
• Gene ID: 931
• NCBI Gene ID: 712553
• UniProt: P11836
• Cellular Locus: Plasma membrane
• Host: Rabbit
• Species Reactivity: Human
• Immunogen: Recombinant full-length human MS4A1 protein
• Target Antigen: CD20 | MS4A1
• Clonality: Polyclonal
• Isotype: IgG
• Conjugation: Purified, with BSA
• Disease: Tumor
• Source: Animal
• Applications: IHC, FFPE (verified)
• Validated Applications: IHC, FFPE
• Positive Control: Daudi, Raji, and U266, and human lymphocytes. Lymph nodes and tonsils.
• Concentration: 0.2 mg/mL
• Buffer: PBS, 0.05% BSA, 0.05% azide
• Molecular Weight: 33-37 kDa
• Shipping Conditions: Room temperature
• Storage Conditions: 4°C; Stable at room temperature or 37°C (98°F) for 7 days.
• Shelf Life: 2 years