CD8 is a cell surface receptor expressed either as a heterodimer with the CD8 beta chain (CD8 alpha/beta) or as a homodimer (CD8 alpha/alpha).
A majority of thymocytes and a subpopulation of mature T cells and NK cell express CD8a.
CD8 binds to MHC class 1 and through its association with protein tyrosine kinase p56lck plays a role in T cell development and activation of mature T cells.
For mature T-cells, CD4 and CD8 are mutually exclusive, so anti-CD8, generally used in conjunction with anti-CD4.
It is a useful marker for distinguishing helper/inducer T-lymphocytes, and most peripheral T-cell lymphomas are CD4+/CD8-.
Anaplastic large cell lymphoma is usually CD4+ and CD8-, and in T-lymphoblastic lymphoma/leukemia, CD4 and CD8 are often co-expressed.
CD8 is also found in littoral cell angioma of the spleen.
Applications:Suitable for use in FLISA, Western Blot, Immunofluorescence, Immunoprecipitation, Flow Cytometry (Not Tested) and Immunohistochemistry.
Other applications not tested.
Recommended Dilution:Immunofluorescence: 1-2ug/mlImmunoprecipitation: 1-2ug/500ug protein lysateFlow Cytometry (Not Tested): 1-2ug/10e6 cellsWestern Blot: 1-2ug/mlImmunohistochemistry (Frozen & Formalin fixed paraffin embedded): 1-2ug/ml/30min @ RTOptimal dilutions to be determined by the researcher.
Positive Control:HuT78 or hPBL.
Tonsil
Storage and Stability:Store product at 4°C if to be used immediately within two weeks.
For long-term storage, aliquot to avoid repeated freezing and thawing and store at -20°C.
Aliquots are stable at -20°C for 12 months after receipt.
Dilute required amount only prior to immediate use.
Further dilutions can be made in assay buffer.
Caution: FITC conjugates are sensitive to light.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Note: Applications are based on unconjugated antibody.
仕様
Size:100ul
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by Protein A affinity chromatography.
Form:Supplied as a liquid in 10mM PBS. No preservative added. BSA-Free. Labeled with Fluorescein isothiocyanate (FITC).
Specificity:Recognizes human CD8a.
Isotype:IgG
Calc Applications Abbrev:FLISA IF IHC IP WB
Calc Crossreactivity:Hu
Immunogen:Recombinant protein corresponding to aa200-250 from human CD8a.