CD20 (MS4A1) (B-Cell Marker) (clone SPM494), anti-human, baboon, and monkey
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In stock
SKU
ARP-24-931-MSM2X
Catalog Number: 24-931-MSM2X
Size: 100 µl, 0.5 ml, 1 ml
Isotype: Mouse IgG2a, kappa
Size: 100 µl, 0.5 ml, 1 ml
Isotype: Mouse IgG2a, kappa
Decription:
Recognizes a protein of 30-33kDa, which is identified as CD20. Its epitope is located in the cytoplasmic domain of CD20 and was, therefore, ascribed as CD20cy in the 5th Workshop. CD20 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 monoclonal 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.
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)
Clone: SPM494
Isotype: Mouse IgG2a, kappa
Immunogen: Human tonsil B cells
Reactivity: human, baboon, and monkey. Does not react with cow, dog, pig, and rat. Others not known.
Form: Purified, in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.
Applications: Flow Cytometry (2-5ul/million cells in 0.1ml)
Immunofluorescence (1:100-1:200)
Immunohistology (Formalin-fixed) (1:100-1:200 for 30 minutes at RT)
(Staining of formalin-fixed tissues requires boiling tissue sections in 10mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes)
Optimal dilution for a specific application should be determined.
Reactivity: Daudi, Raji, and U266, and human lymphocytes. Lymph nodes and tonsils.
Concentration: 0.2mg/ml
Storage: Can be stored at +4C. For long term storage, aliquot and store at -20C. Avoid repeated freezing and thawing cycles.
Recognizes a protein of 30-33kDa, which is identified as CD20. Its epitope is located in the cytoplasmic domain of CD20 and was, therefore, ascribed as CD20cy in the 5th Workshop. CD20 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 monoclonal 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.
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)
Clone: SPM494
Isotype: Mouse IgG2a, kappa
Immunogen: Human tonsil B cells
Reactivity: human, baboon, and monkey. Does not react with cow, dog, pig, and rat. Others not known.
Form: Purified, in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.
Applications: Flow Cytometry (2-5ul/million cells in 0.1ml)
Immunofluorescence (1:100-1:200)
Immunohistology (Formalin-fixed) (1:100-1:200 for 30 minutes at RT)
(Staining of formalin-fixed tissues requires boiling tissue sections in 10mM citrate buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes)
Optimal dilution for a specific application should be determined.
Reactivity: Daudi, Raji, and U266, and human lymphocytes. Lymph nodes and tonsils.
Concentration: 0.2mg/ml
Storage: Can be stored at +4C. For long term storage, aliquot and store at -20C. Avoid repeated freezing and thawing cycles.
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