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CD20 Recombinant Rabbit mAb (bsm-63327R)  
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25ul/800.00元
50ul/1400.00元
100ul/2500.00元
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產品編號 bsm-63327R
英文名稱 CD20 Recombinant Rabbit mAb
中文名稱 CD20重組兔單抗
別    名 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.  
抗體來源 Rabbit
克隆類型 Recombinant
克 隆 號
交叉反應 Human
產品應用 WB=1:500-2000,IHC-P=1:100-500,IHC-F=1:100-500,IF=1:100-500,Flow-Cyt=1:50-100,ICC/IF=1:50-1:200
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
理論分子量 33 kDa
檢測分子量
細胞定位 細胞膜 
性    狀 Liquid
濃    度 1mg/ml
免 疫 原 A synthesized peptide derived from human CD20: 250-297/297 
亞    型 IgG
純化方法 affinity purified by Protein A
緩 沖 液 0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.
保存條件 Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.
注意事項 This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
PubMed PubMed
產品介紹 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.

SWISS:
P11836

Gene ID:
931

Database links:

Entrez Gene : 931 Human

Omim : 112210 Human

SwissProt : P11836 Human

Unigene : 712553 Human



[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. B淋巴細胞標志物 CD20是B細胞特異性抗原,其表達呈細胞類型一種質膜蛋白質,參與信號傳導作用,此抗體識別大多數B細胞上的一種抗原。多用于標記B淋巴細胞及B細胞淋巴瘤。 CD20一般不與T細胞交叉反應,對B細胞淋巴瘤和急慢性淋巴細胞白血病等有較好的細胞特異性,因此在惡性淋巴瘤,尤其是T或B細胞淋巴瘤的分類上,CD20是最常用的B細胞標志。
產品圖片
25 ug total protein per lane of various lysates (see on figure) probed with CD20 monoclonal antibody, unconjugated (bsm-63327R) at 1:1000 dilution and 4°C overnight incubation. Followed by conjugated secondary antibody incubation at r.t. for 60 min.
Paraformaldehyde-fixed, paraffin embedded Human Gastric Cancer; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
Paraformaldehyde-fixed, paraffin embedded Human Esophageal Cancer; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
Paraformaldehyde-fixed, paraffin embedded Human Breast Cancer; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
Paraformaldehyde-fixed, paraffin embedded Human Spleen; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
Paraformaldehyde-fixed, paraffin embedded Human Liver Cancer; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
Paraformaldehyde-fixed, paraffin embedded Human Tonsil; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
Paraformaldehyde-fixed, paraffin embedded Human Diffuse large B-cell lymphoma; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
Paraformaldehyde-fixed, paraffin embedded Human Lung Cancer; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
(Negative control)Paraformaldehyde-fixed, paraffin embedded Human Cerebrum; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15 min; Antibody incubation with CD20 Monoclonal Antibody, Unconjugated(bsm-63327R) at 1:200 overnight at 4°C, followed by conjugation to the bs-0295G-HRP and DAB (C-0010) staining.
4% Paraformaldehyde-fixed Raji (H) cell; Antibody incubation with (CD20) monoclonal Antibody, unconjugated (bsm-63327R) 1:100, 90 min at 37°C; followed by conjugated Goat Anti-Rabbit IgG antibody (green, bs-60295G-BF488) at 37°C for 90 min, DAPI (blue, C02-04002) was used to stain the cell nuclei. PBS instead of the primary antibody was used as the blank control.
The Raji (H) cells were incubated in 5%BSA to block non-specific protein-protein interactions (30 min at r.t.). Primary Antibody (green): Rabbit Anti-CD20 antibody (bsm-63327R): 1 μg/10^6 cells; Secondary Antibody (white blue): Goat anti-Rabbit IgG-BF488 (bs-60295G-BF488): 1 μg/test. Blank control (black): PBS. Acquisition of 20,000 events was performed.
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