CD20 Antibody
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.
Product Specifications
CAS Number
9007-83-4
Specifications
Western blot: 1-2 µg/mL, Immunohistochemistry (FFPE) : 1-2 µg/mL
UniProt
P11836
Host
Mouse
Reactivity
Human, Mouse and Rat
Immunogen
A portion of amino acids 266-297 from the cytoplasmic domain was used as the immunogen for the CD20 antibody.
Clonality
Monoclonal
Isotype
IgG1 k
Clone
MS4A1/4655
Applications
WB, IHC-P
Purity
Protein A affinity
Format
Purified
Buffer
0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced), 0.05% sodium azide
Reconstitution
Aliquot the CD20 antibody and store frozen at -20oC or colder. Avoid repeated freeze-thaw cycles.
Limitations
This CD20 antibody is available for research use only.
Storage Conditions
Aliquot the CD20 antibody and store frozen at -20°C or colder. Avoid repeated freeze-thaw cycles.
Formulation
0.2 mg/mL in 1X PBS with 0.1 mg/mL BSA (US sourced), 0.05% sodium azide
Applications Notes
Optimal dilution of the CD20 antibody should be determined by the researcher.
Location
Cell Surface
Image Legend
Western blot testing of human Raji cell lysate with CD20 antibody (clone MS4A1/4655) . Predicted molecular weight ~33 kDa.
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