Human tonsil B cells (L26), Recombinant human MS4A1 protein (IGEL/773)
Alternative Names:
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)
This antibody recognizes a protein of 30-33 kDa, 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 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.
Does not react with Cow, Dog, Pig or Rat|For coating for ELISA, order Ab without BSA|Higher concentration may be required for direct detection using primary antibody conjugates than for indirect detection with secondary antibody|Optimal dilution and staining procedure for a specific application should be determined by user|Recommended starting concentrations for titration are 1-2 ug/mL for most applications, or 1 ug/million cells/100 uL for flow cytometry
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