Cd8b Mouse Monoclonal Antibody [Clone ID: 3.4.1]

CAT#: SM260FX

Cd8b mouse monoclonal antibody, clone 3.4.1, FITC



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CNY 10,350.00


货期*
5周

规格
    • 500 ug

Product images

Specifications

Product Data
Clone Name 3.4.1
Applications FC
Recommend Dilution Flow Cytometry, Immunoprecipitation and Western blotting.

Test Results:
Tissue Distribution by Flow Cytometry Analysis:
Rat Strain: Wister.
Cell Concentration: 1x10e6 cells per tests.
Antibody Concentration Used: 0.5 μg/10e6 cells.
Isotypic Control: FITC Mouse IgG1.
Cell Source : Percentage of cells stained above control:
Thymus : 90.0%
Spleen Cells : 15.2%
Lymph Nodes : 17.0%
Reactivity Rat
Host Mouse
Clonality Monoclonal
Immunogen Rat/mouse T cell hybrids expressing CD8.
Specificity This monoclonal antibody reacts with the beta chain of the CD8 differentiation antigen.
The 3.4.1 antibody also blocks both activation in an allogenic response and cell mediated cytotoxicity by
CD8 T cells.
Formulation PBS containing 0.02% Sodium Azide as preservative and EIA grade BSA as a stabilizing protein to bring total protein concentration to 4-5 mg/ml.
Label: FITC
State: Liquid purified IgG fraction.
Concentration lot specific
Purification Protein G Chromatography of Ascites fluid.
Conjugation FITC
Storage Condition Store the antibody undiluted at 2-8°C for one month or (in alqiuots) at -20°C for longer.
Avoid repeated freezing and thawing.
Gene Name CD8b molecule
Background CD8b is expressed on most thymocytes and mature T cytotoxic/suppressor cells (MHC class I restricted). While the CD8a and CD8b form a heterodimer on the surface of thymocytes and thymus-dependent T cytotoxic/suppressor cells, the majority of NK cells, many CD8 T cells from athymic rats, many activated CD4 T cells, and intestinal epithelium lymphocytes (IEL) express CD8a without CD8b.
This suggests that expression of the CD8 heterodimer (a/b) is more dependant on intrathymic T cell maturation than that of the homodimer (a/a). The thymus dependence of CD8a/b T cells may be due to a requirement for thymic selection on self MHC class I antigens.
Synonyms CD8B, CD8B1
Note Protocol: Flow Cytometry Analaysis:

Method:
1. Prepare a cell suspension in media A. For cell peparations, deplete the red blood cell population with Lympholyte®-M cell separation medium.
2. Wash 2 times.
3. Resuspend the cells to a concentration of 2x10e7 cells/ml in media A. Add 50 μl of this suspension to each tube (each tube will then contain 1x10e6 cells, representing 1 test).
4. To each tube, add 0.1-0.5 µg* of SM260FX per 10e6 cells.
5. Vortex the tubes to ensure thorough mixing of antibody and cells.
6. Incubate the tubes for 30 minutes at 4°C.
(It is recommended that the tubes are protected from light, since most flurochromes are light sensitive.)
7. Wash 2 times at 4°C.
8. Resuspend the cell pellet in 50 μl ice cold media B.
9. Transfer to suitable tubes for flow cytometric analysis containing 15 μl of propidium iodide at 0.5 mg/ml in PBS. This stains dead cells by intercalating in DNA.

Media:
A. Phosphate buffered saline (pH 7.2) + 5% normal serum of host species + sodium azide (100 μl of 2M sodium azide in 100 mls).
B. Phosphate buffered saline (pH 7.2) + 0.5% Bovine serum albumin + sodium azide (100 μl of 2M sodium azide in 100 mls).
Reference Data
*Delivery time may vary from web posted schedule. Occasional delays may occur due to unforeseen complexities in the preparation of your product. International customers may expect an additional 1-2 weeks in shipping.
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