Recombinant CD20 Antibody

SKU: orb1826066

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.

Images & Validation

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Tested Applications	IHC-P, WB
Dilution Range	Western blot: 2-4ug/ml,Immunohistochemistry (FFPE): 1-2ug/ml for 30 min at RT
Reactivity	Human
Application Notes	Optimal dilution of the recombinant CD20 antibody should be determined by the researcher.

Key Properties

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Antibody Type	Primary Antibody
Host	Rabbit
Clonality	Recombinant
Isotype	Rabbit IgG, kappa
Clone No.	MS4A1/8072R
Immunogen	A recombinant partial protein (within amino acids 200-297) from the human protein was used as the immunogen for the recombinant CD20 antibody.
Purification	Protein A affinity
Conjugation	Unconjugated

Storage & Handling

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Storage	Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
Buffer/Preservatives	1 mg/ml in 1X PBS; rAlbumin free, sodium azide free
Expiration Date	12 months from date of receipt.
Disclaimer	For research use only

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IHC staining of FFPE human tonsil tissue with recombinant CD20 antibody (clone MS4A1/8072R). Inset: PBS used in place of primary Ab (secondary Ab negative control). HIER: boil tissue sections in pH9 10 mM Tris with 1 mM EDTA for 20 min and allow to cool before testing.

Western blot testing of human Raji cell lysate with recombinant CD20 antibody (clone MS4A1/8072R). Predicted molecular weight ~33 kDa.

SDS-PAGE analysis of purified, BSA-free recombinant CD20 antibody (clone MS4A1/8072R) as confirmation of integrity and purity.

Quick Database Links

UniProt

P11836

UniProt Details

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No UniProt data available

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Protocol Information

Western Blot (IB, immunoblot)

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IHC-P

Immunohistochemistry Paraffin

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