Cd8a Rat Monoclonal Antibody [Clone ID: YTS169.4]

CAT#: CL007F

Cd8a rat monoclonal antibody, clone YTS169.4, FITC

Product Images

Tissue Distribution by Flow Cytometry Analysis: Mouse Strain: BALB/c Cell Concentration: 1x10e6 cells per test Antibody Concentration Used: 0.1 ug/10e6 cells Isotypic Control: FITC Rat IgG2b Cell Source Percentage of cells stained above control:Thymus 74.4%

Specifications

Product Data

• Clone Name: YTS169.4
• Applications: FC, IHC
• Recommended Dilution: Flow Cytometry.
  Immunohistochemistry on frozen sections.
• Reactivities: Mouse
• Host: Rat
• Isotype: IgG2b
• Clonality: Monoclonal
• Immunogen: Murine thymocytes
• Specificity: Antibody CL007 reacts with a protein of approximately 30 kDa found on mouse thymocytes and mouse cytotoxic/ suppressor T cells. It does not bind to mouse helper/inducer T cells. It binds to T lymphocytes from all mouse strains regardless of phenotypic expression (i.e. reacts with T lymphocytes from mouse strains expressing the Ly 2.1 or Ly 2.2 phenotype). It can be used to investigate the role of T cells in models for infectious disease, autoimmunity, transplantation tolerance and fundamental aspects of immunology.
• Formulation: PBS, 0.02% NaN3 and EIA grade BSA as a stabilizing protein to bring total protein concentration to 4-5 mg/ml.
  Label: FITC
  State: Liquid purified IgG
• Concentration: lot specific
• Purification: Protein G Chromatography
• Conjugation: FITC
• Storage: Store the antibody at 2 - 8 °C up to one month or (in aliquots) at -20 °C for longer. Avoid repeated freezing and thawing.
• Stability: Shelf life: one year from despatch.
• Gene Name: CD8 antigen, alpha chain
• Database Link:
  Entrez Gene 12525 Mouse
  UniProt ID P01731
• Background: The CD8 antigen is a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell to cell interactions within the immune system. The CD8 antigen, acting as a coreceptor, and the T cell receptor on the T lymphocyte recognize antigen displayed by an antigen presenting cell (APC) in the context of class I MHC molecules. The functional coreceptor is either a homodimer composed of two alpha chains, or a heterodimer composed of one alpha and one beta chain. Both alpha and beta chains share significant homology to immunoglobulin variable light chains.
• Synonyms: CD8 alpha chain, CD8A, MAL
• Note: Strain Distribution by Flow Cytometry Analysis:
  Procedure: see below
  Cell Concentration: 1x10e6 cells per test
  Antibody Concentration Used: 0.1 µg/10e6 cells
  Strains Tested: BALB/c, C57BL/6
  Positive: BALB/c, C57BL/6
  Negative: non
  
  Protocol: FLOW CYTOMETRY ANALYSIS:
  Method:
  1. Prepare a cell suspension in media A. For cell preparations, deplete the red blood cell population with Lympholyte®-M cell separation medium.
  2. Wash 2 times.
  3. Resuspend the cells to a concentration of 2x107 cells/ml in media A. Add 50µl of this suspension to each tube (each tube will then contain 1 x 106 cells, representing 1 test).
  4. To each tube, add 0.1-0.5 µg* of CL007F per 106 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).