CD20 Antibody

• Description:

  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.

• Specifications:

  The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.

• UniProt:

  P11836

• Host:

  Mouse

• Reactivity:

  Human

• Immunogen:

  Amino acids 213-297 from the human protein were used as the immunogen for this CD20 antibody.

• Clonality:

  Monoclonal

• Isotype:

  IgG2b κ

• Clone:

  MS4A1/3409

• Applications:

  IHC-P

• Purity:

  Protein G affinity chromatography

• Format:

  Purified

• Buffer:

  Prediluted in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide; *For IHC use only*

• Reconstitution:

  CD20 antibody with azide can be stored at 2-8oC. The azide-free format should be aliquoted and stored at -20oC or colder.

• Limitations:

  This CD20 antibody is available for research use only.

• Storage Conditions:

  CD20 antibody with azide can be stored at 2-8°C. The azide-free format should be aliquoted and stored at -20°C or colder.

• Formulation:

  Prediluted in 1X PBS, 0.1 mg/mL BSA (US sourced), 0.05% sodium azide; *For IHC use only*

• CAS Number:

  9007-83-4

• Location:

  Predominantly cell surface with some cytoplasmic

• Image Legend:

  IHC staining of FFPE human tonsil tissue with CD20 antibody (clone MS4A1/3409) . HIER: boil tissue sections in pH6, 10mM citrate buffer, for 10-20 min and allow to cool before testing.