SM3140PD6 CD20 / MS4A1 antibody
see related secondary antibodiessee all 90 CD20 / MS4A1 products
100 Tests / US$ 375
NOVUS BIOLOGICALS
PO Box 802 Littleton, CO 80160, USA
E-Mail: novus@novus-biologicals.com
Homepage: http://www.novus-biologicals.com
PO Box 802 Littleton, CO 80160, USA
E-Mail: novus@novus-biologicals.com
Homepage: http://www.novus-biologicals.com
Quick Overview
Mouse anti CD20 / MS4A1 LT20
Synonyms
MS4A1, CD20,
Leu-16, Bp35, B-lymphocyte antigen CD20, Membrane-spanning 4-domains subfamily A member 1, B-lymphocyte surface antigen B1
Product Description
Mouse anti CD20 / MS4A1 LT20, Presentation: PE-DY647. Product is tested for Flow cytometry ( F )
Properties
| Applications | Flow cytometry ( F ) |
| Reactivity | Human ( Hu ) |
| Presentation | PE-DY647 |
| Host | Mouse |
| Isotype | IgG2a |
| Clone | LT20 |
| Catalog Number | SM3140PD6 |
| Swiss Prot. No. | P11836 |
| Quantity | 100 Tests |
| Price | US$ 375 |
| Delivery | Worldwide |
| Manufacturer | Acris Antibodies GmbH |
| Datasheet | view  SM3140PD6.pdf |
Datasheet Extract
| Background | CD20 is a cell surface 33-37 (depending on the degree of phosphorylation) kDa non-glycosylated surface phosphoprotein expressed on mature and most malignant B cells, but not stem cells or plasma cells (low number of the CD20 has been also detected on a subpopulation of T lymphocytes and it can be expressed on follicular dendritic cells). Its expression on B cells is synchronous with the expression of surface IgM. CD20 regulates transmembrane calcium conductance (probably functioning as a component of store-operated calcium channel), cell cycle progression and B-cell proliferation. It is associated with lipid rafts, but the intensity of this association depends on extracellular triggering, employing CD20 conformational change and/or BCR (B cell antigen receptor) aggregation. After the receptor ligation, BCR and CD20 colocalize and then rapidly dissociate before BCR endocytosis, whereas CD20 remains at the cell surface. CD20 serves as a useful target for antibody-mediated therapeutic depletion of B cells, as it is expressed at high levels on most B-cell malignancies, but does not become internalized or shed from the plasma membrane following mAb treatment. |
| Immunogen | Normal human lymphocytes from lymph node Swiss Num.: P11836 |
| Format | State: Liquid Ig fraction BufferSystem: Phosphate buffered saline (PBS) containing 15 mM sodium azide and 0.2% (w/v) high-grade protease free Bovine Serum Albumin (BSA) as a stabilizing agent Label: Conjugated with tandem dye PE-Dyomics 647 (PE-DY647) under optimum conditions. The conjugate is purified by size-exclusion chromatography and adjusted for direct use. |
| Applications | Flow Cytometry. |
| Specificity | This antibody reacts with CD20 (Bp35), a 33-37 kDa non-glycosylated membrane receptor with four transmembrane domains, expressed on B lymphocytes (it is lost on plasma cells), follicular dendritic cells, and at low levels on peripheral blood T lymphocytes. Species: Human. |
| Storage | Store the antibody at 2 - 8 °C. DO NOT FREEZE! Centrifuge vial before opening. This product is photosensitive and should be protected from light.
Shelf life: one year from despatch. |
| References | 1. Hultin LE, Hausner MA, Hultin PM, Giorgi JV: CD20 (pan-B cell) antigen is expressed at a low level on a subpopulation of human T lymphocytes. Cytometry. 1993;14(2):196-204.
2. Petrie RJ, Deans JP: Colocalization of the B cell receptor and CD20 followed by activation-dependent dissociation in distinct lipid rafts. J Immunol. 2002 Sep 15;169(6):2886-91. 3. Li H, Ayer LM, Polyak MJ, Mutch CM, Petrie RJ, Gauthier L, Shariat N, Hendzel MJ, Shaw AR, Patel KD, Deans JP. The CD20 calcium channel is localized to microvilli and constitutively associated with membrane rafts: antibody binding increases the affinity of the association through an epitope-dependent cross-linking-independent mechanism. J Biol Chem. 2004 May 7;279(19):19893-901. 4. Cragg MS, Walshe CA, Ivanov AO, Glennie MJ: The biology of CD20 and its potential as a target for mAb therapy. Curr Dir Autoimmun. 2005;8:140-74. 5. Glennie MJ, French RR, Cragg MS, Taylor RP: Mechanisms of killing by anti-CD20 monoclonal antibodies. Mol Immunol. 2007 Sep;44(16):3823-37. 6. Leukocyte Typing VII., Mason D. et al. (Eds.), Oxford University Press (2002). 7. Polyak MJ, Deans JP: Alanine-170 and proline-172 are critical determinants for extracellular CD20 epitopes; heterogeneity in the fine specificity of CD20 monoclonal antibodies is defined by additional requirements imposed by both amino acid sequence and quaternary structure. Blood. 2002 May 1;99(9):3256-62. 8. Chan HT, Hughes D, French RR, Tutt AL, Walshe CA, Teeling JL, Glennie MJ, Cragg MS: CD20-induced lymphoma cell death is independent of both caspases and its redistribution into triton X-100 insoluble membrane rafts. Cancer Res. 2003 Sep 1;63(17):5480-9. 9. Teeling JL, Mackus WJ, Wiegman LJ, van den Brakel JH, Beers SA, French RR, van Meerten T, Ebeling S, Vink T, Slootstra JW, Parren PW, Glennie MJ, van de Winkel JG: The biological activity of human CD20 monoclonal antibodies is linked to unique epitopes on CD20. J Immunol. 2006 Jul 1;177(1):362-71. |
14 Secondary Antibodies
| Catalog No. | Name / Host | Presentation | Reactivity | ||||
|---|---|---|---|---|---|---|---|
| R1253B | Mouse IgG (H&L) | ||||||
| Rabbit | Biotin | 2 mg / US$ 305 | |||||
| R1253F | Mouse IgG (H&L) | ||||||
| Rabbit | FITC | 2 mg / US$ 285 | |||||
| R1253T | Mouse IgG (H&L) | ||||||
| Rabbit | TRITC | 2 mg / US$ 285 | |||||
| R1253TR | Mouse IgG (H&L) | ||||||
| Rabbit | Texas Red | 2 mg / US$ 295 | |||||
| R1253HRP | Mouse IgG (H&L) | ||||||
| Rabbit | HRP | 2 mg / US$ 315 | |||||
| R1253AP | Mouse IgG (H&L) | ||||||
| Rabbit | AP | 1 mg / US$ 325 | |||||
| R1457C2 | Mouse IgG (H&L) multi-species ads. | ||||||
| Goat | Cy2 | 1 mg / US$ 445 | |||||
| R1457C3 | Mouse IgG (H&L) multi-species ads. | ||||||
| Goat | Cy3 | 1 mg / US$ 445 | |||||
| R1457C35 | Mouse IgG (H&L) multi-species ads. | ||||||
| Goat | Cy3.5 | 1 mg / US$ 445 | |||||
| R1457C5 | Mouse IgG (H&L) multi-species ads. | ||||||
| Goat | Cy5 | 1 mg / US$ 445 | |||||
| R1457C55 | Mouse IgG (H&L) multi-species ads. | ||||||
| Goat | Cy5.5 | 1 mg / US$ 445 | |||||
| R1405R | Mouse IgG (H&L) F(ab')2 Fragment ads. to Bov, Eq, Hu, Rb, Rt, Sh | ||||||
| Goat | PE | 1 ml / US$ 455 | |||||
| R1403R | Mouse IgG (H&L) F(ab')2 Fragment ads. to Hu serum proteins | ||||||
| Rabbit | PE | 1 ml / US$ 455 | |||||
| R1455R | Mouse IgG (H&L) F(ab')2 Fragment multi-species ads. | ||||||
| Donkey | PE | 1 ml / US$ 455 | |||||
Click here to see all secondary antibodies for 'SM3140PD6 CD20 / MS4A1'.
