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PerCP anti-human CD8a Antibody

Pricing & Availability
Clone
RPA-T8 (See other available formats)
Regulatory Status
RUO
Workshop
IV T171
Other Names
T8, Leu2
Isotype
Mouse IgG1, κ
Ave. Rating
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Product Citations
publications
RPA-T8_PerCP_020608
Human peripheral blood lymphocytes stained with RPA-T8 PerCP
  • RPA-T8_PerCP_020608
    Human peripheral blood lymphocytes stained with RPA-T8 PerCP
See PerCP spectral data
Cat # Size Price Quantity Check Availability Save
301029 25 tests 123€
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301030 100 tests 268€
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Description

CD8a is a 32-34 kD type I glycoprotein. It forms a homodimer (CD8a/a) or heterodimer (CD8a/b) with CD8b. CD8, also known as T8 and Leu2, is a member of the immunoglobulin superfamily found on the majority of thymocytes, a subset of peripheral blood T cells, and NK cells (which express almost exclusively CD8a homodimers). CD8 acts as a co-receptor with MHC class I-restricted T cell receptors in antigen recognition and T cell activation, and has been shown to play a role in thymic differentiation. Two domains in CD8a are important for function: the extracellular IgSF domain binds the α3 domain of MHC class I and the cytoplasmic CXCP motif binds the tyrosine kinase p56 Lck.

Product Details
Technical Data Sheet (pdf)

Product Details

Reactivity
Human,Cynomolgus,Rhesus
Antibody Type
Monoclonal
Host Species
Mouse
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
Preparation
The antibody was purified by affinity chromatography, and conjugated with PerCP under optimal conditions.
Concentration
Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
Storage & Handling
The CD8a antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application

FC - Quality tested
Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤2.0 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

* PerCP has a maximum absorption of 482 nm and a maximum emission of 675 nm.

Excitation Laser
Blue Laser (488 nm)
Application Notes

The RPA-T8 antibody does not block the binding of HIT8a antibody to CD8a. Additional reported applications of this antibody (for the relevant formats) include: immunohistochemical staining of paraformaldehyde-fixed frozen sections3 and costimulation of T cell responses4. This clone was tested in-house and does not work on formalin fixed paraffin-embedded (FFPE) tissue. The Ultra-LEAF™ purified antibody (Endotoxin <0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for functional assays (Cat. Nos. 301073 & 301074).

Application References
  1. Knapp W, et al. Eds. 1989. Leucocyte Typing IV. Oxford University Press. New York.
  2. Schlossman S, et al. Eds. 1995. Leucocyte Typing V. Oxford University Press. New York.
  3. Mack CL, et al. 2004. Pediatr. Res. 56:79. (IHC)
  4. Magidovich E, et al. 2007. P. Natl. Acad. Sci. USA 104:13022.
  5. Thakarl D, et al. 2008.J. immunol. 180:7431. PubMed
  6. Kmieciak M, et al. 2009. J. Transl. Med. 7:89. (FC) PubMed
  7. Thakral D, et al. 2008. J. Immunol. 180:7431. (FC) PubMed
  8. Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC)
  9. Rout N, et al. 2010. PLoS One 5:e9787. (FC)
  10. Stoeckius M, et al. 2017. Nat. Methods. 14:865. (PG)
Product Citations
  1. Idorn M, et al. 2018. Oncoimmunology. 7:e1412029. PubMed
  2. Hams E, et al. 2014. Proc Natl Acad Sci U S A. 111:367. PubMed
  3. Obiero J, et al. 2015. Infect Immun . 83:2185. PubMed
  4. Shi Z, et al. 2021. Ann Clin Transl Neurol. 8:43. PubMed
  5. Lübke M, et al. 2020. J Exp Med. 217:00:00. PubMed
  6. Platten M, et al. 2021. Nature. 592:463. PubMed
  7. Hardman CS, et al. 2021. Sci Immunol. 6:. PubMed
  8. Nguyen LT, et al. 2022. Prostate Cancer. 2022:6499344. PubMed
  9. Kilgour MK, et al. 2022. Nat Protoc. 17:2668. PubMed
  10. McEvoy CM, et al. 2022. Nat Commun. 13:7634. PubMed
RRID
AB_893425 (BioLegend Cat. No. 301029)
AB_893421 (BioLegend Cat. No. 301030)

Antigen Details

Structure
Ig superfamily, homodimer or heterodimer with CD8β, 32-34 kD
Distribution

Majority of thymocytes, T cell subset, NK cells

Function
MHC class I co-receptor, thymic differentiation, T cell activation
Ligand/Receptor
MHC Class I molecules
Cell Type
Dendritic cells, NK cells, T cells, Thymocytes, Tregs
Biology Area
Immunology
Molecular Family
CD Molecules
Antigen References

1. Barclay N, et al. 1993. The Leucocyte Antigen FactsBook. Academic Press Inc. San Diego.

Gene ID
925 View all products for this Gene ID
UniProt
View information about CD8alpha on UniProt.org

Related FAQs

How stable is PerCP/Cy5.5 tandem as compared to PerCP alone?

PerCP/Cy5.5 is quite photostable and also better than PerCP alone in withstanding fixation.

Go To Top Version: 3    Revision Date: 07.13.2015

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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