CD20
: MS4A1, CD20, CD20 antigen, CD20 receptor,
B-Lymphocyte cell-surface antigen B1
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Antigen Preparation
A recombinant protein of human CD20
Background
"CD20, a non-glycosylated protein, belongs to a member of the membrane-spanning 4A gene family. The molecular weight is at a range of ~34-37kDa depending on the degree of the protein phosphorylation. The CD20 antigen is present on human pre B lymphocytes and B lymphocytes at all stages of maturation. Thus, it plays an important role in the development and differentiation of B-cells into plasma cells. The CD20 molecule is involved in B-cell activation. Combination of chemo and humanized CD20 antibodies has been reported in clinical study of lymphoma diseases. Selective depletion of CD20+ B cells by anti-CD20 monoclonal antibodies as monotherapy in multiple sclerosis (MS) profoundly suppresses acute inflammatory disease activity and signifies an important advance in the treatment of relapsing-remitting MS. In the past years, development of monoclonal anti-CD20 antibodies changed drastically the treatment for non-Hodgkin lymphomas in which CD20 is expressed."
PURIFICATION
The mouse IgG is purified by Protein A-Affinity Chromatography according to Isotyping
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SPECIFICITY
This antibody recognizes human CD20 protein. The other species are not tested.
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FORMULATION
This affinity purified antibody is supplied in sterile Phosphatebuffered saline (pH7.2) containing antibody stabilizer
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STORAGE
The antibodies are stable for 24 months from date of receipt when stored at –20oC to –70oC. The antibodies can be stored at 2oC-8oC for three month without detectable loss of activity. Avoid repeated freezing-thawing cycles.
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Applications/Suggested Working Dilutions
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Immunoprecipitation
2-5 µg/ml
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Flow cytometry
Not tested
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