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Product Name Anti-CD20/PE-Cy5.5 Chinese Name PE-Cy5.5标记的CD20抗体 Alias CD20_HUMAN; B-lymphocyte antigen CD20; B-lymphocyte surface antigen B1; Bp35; Leukocyte surface antigen Leu-16; Membrane-spanning 4-domains subfamily A member 1; MS4A1; MS4A2; B1; CVID5; LEU-16; S7. Research Area Tumour immunology Stem cells Cell Surface Molecule Cell type markers lymphocyte b-lymphocyte Immunogen Species Rabbit Clonality Polyclonal React Species Human, Rat, (predicted: Mouse, Dog, Cow, Rabbit, ) Applications Flow-Cyt=1:50-200 IF=1:50-200
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.Molecular weight 33kDa Form Lyophilized or Liquid Concentration 1mg/ml immunogen KLH conjugated synthetic peptide derived from human CD20 Lsotype IgG Purification affinity purified by Protein A Storage Buffer 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. Storage Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C. Product Detail background:
CD20 is a non glycosylated protein with a molecular weight of 35 or 37 kDa depending on the degree of phosphorylation. Although not a member of the tetraspanin superfamily of cell surface receptors, it crosses the cell membrane four times. The CD20 antigen is present on human pre B lymphocytes and on B lymphocytes at all stages of maturation, except on plasma cells. Low level expression of the CD20 antigen has been detected on normal T lymphocytes. The CD20 molecule is involved in regulation of B cell differentiation, presumably via its reported function as a Ca++ channel subunit.
Function:
This protein may be involved in the regulation of B-cell activation and proliferation
Subcellular Location:
Membrane; Multi-pass membrane protein.
Tissue Specificity:
Expressed on B-cells.
Post-translational modifications:
Phosphorylated. Might be functionally regulated by protein kinase(s).
DISEASE:
Defects in MS4A1 are the cause of immunodeficiency common variable type 5 (CVID5) [MIM:613495]; also called antibody deficiency due to CD20 defect. CVID5 is a primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B-cells is usually in the normal range, but can be low.
Similarity:
Belongs to the MS4A family.
Database links:Entrez Gene: 931 Human
Omim: 112210 Human
SwissProt: P11836 Human
Unigene: 712553 Human
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
[PHARMACEUTICAL] Monoclonal antibodies (mAb) against CD20 are used to treat B-cell non-Hodgkin lymphoma (NHL). These antibodies include Rituximab (Mabthera), Britumomab (Zevalin) and Tositumomab (Bexxar). CD20 engaged by mAb can generate transmembrane signals capable of directly controlling cell growth and triggering cell death in certain tumors. Alternatively, mAb can mediate complement-dependent cytotoxicity.
BlymphocyteMaker
CD20是B细胞特异性抗原,其表达呈细胞类型一种质膜蛋白质,参与信号传导作用,此抗体识别大多数B细胞上的一种抗原。多用于标记Blymphocyte及B细胞淋巴瘤。
CD20一般不与T细胞React Species,对B细胞淋巴瘤和急慢性lymphocyte白血病等有较好的细胞特异性,因此在恶性淋巴瘤,尤其是T或B细胞淋巴瘤的分类上,CD20是最常用的B细胞标志。
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