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Alexa Fluor® 647 anti-rat CD8a Antibody

Pricing & Availability
Clone
OX-8 (See other available formats)
Regulatory Status
RUO
Other Names
CD8a, T8, Leu-8, Ly-2, Lyt2
Isotype
Mouse IgG1, κ
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Product Citations
publications
1_OX-8_A647_020110
LOU rat splenocytes stained with OX-8 Alexa Fluor® 647
  • 1_OX-8_A647_020110
    LOU rat splenocytes stained with OX-8 Alexa Fluor® 647
  • 2_OX-8_A647_CD8a_Antibody_2_010418
    Rat frozen spleen section was fixed with 4% paraformaldehyde (PFA) for ten minutes at room temperature and blocked with 5% FBS for 30 minutes at room temperature. Then the section was stained with 10 µg/mL of CD4 (clone W3/25) Alexa Fluor® 488 (blue), 10 µg/mL of CD8a (clone OX-8) Alexa Fluor® 647 (yellow), and 10 µg/mL of purified CD38 (clone 14.27) overnight at 4°C, followed by 5 µg/mL of anti-mouse IgG2b (clone RMG2b-1) Alexa Fluor® 594 (red) for two hours at room temperature. The image was captured by 10X objective.
Compare all formats See Alexa Fluor® 647 spectral data
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201710 100 µg 265 CHF
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Description

CD8a is a 32 kD glycoprotein also known as T8, Lyt2, Ly-2, and CD8α. CD8a is a member of the immunoglobulin superfamily expressed on most thymocytes, subset of mature T cells, most NK cells, macrophages, and some activated CD4+ T cells (not resting). CD8a forms heterodimers with the CD8β chain (CD8b) on the surface of most thymocytes, while mature peripheral T lymphocytes express almost exclusively the CD8 αβ heterodimer. Intestinal intraepithelial lymphocytes express CD8a without CD8b. CD8 is an antigen co-receptor on T cells that interacts with MHC class I on antigen-presenting cells or epithelial cells. CD8 participates in T cell activation through its association with the T cell receptor complex and protein tyrosine kinase lck (p56lck).

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Rat
Antibody Type
Monoclonal
Host Species
Mouse
Immunogen
High molecular weight glycoproteins from rat thymocytes
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation
The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 647 under optimal conditions.
Concentration
0.5 mg/ml
Storage & Handling
The 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
IHC-F - Verified
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 ≤1.0 µg per million cells in 100 µl volume. For immunohistochemistry staining on frozen tissue sections, a concentration range of 2.5 - 10 µg/ml is suggested. It is recommended that the reagent be titrated for optimal performance for each application.

* Alexa Fluor® 647 has a maximum emission of 668 nm when it is excited at 633 nm / 635 nm.


Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.

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Excitation Laser
Red Laser (633 nm)
Application Notes

The OX-8 antibody has been reported to partially block T cell responses, including mixed lymphocyte reactions and cytotoxic T cell responses, and to induce macrophage activation. Additional reported applications (for the relevant formats) include: immunohistochemistry1,2 of acetone-fixed frozen sections and formalin-fixed paraffin-embedded sections, immunoprecipitation3, in vivo and in vitro blocking of T cell responses3, 4, macrophage stimulation5, and Western blotting3,6.

Application References

(PubMed link indicates BioLegend citation)
  1. Barclay AN. 1981. Immunology 42:593. (IHC)
  2. Wallgren AC, et al. 1995. Transplantation 60:594. (IHC)
  3. Torres-Nagel N, et al. 1992. Eur. J. Immunol. 22:2841. (IP, WB)
  4. Mason DW, et al. 1983. Immunol. Rev. 74:57.
  5. Hirji N, et al. 1997. J. Immunol. 158:1833. (FA)
  6. Mitnacht R,, et al. 1998. J. Immunol. 160:700. (WB)
RRID
AB_756150 (BioLegend Cat. No. 201710)

Antigen Details

Structure
Ig superfamily, approximately 32 kD
Distribution

Thymocytes, NK cells, most CD8+ cells, intestinal intraepithelial lymphocytes, activated CD4+ cells, macrophages

Function
T cell activation, co-receptor for T cell activation
Ligand/Receptor
MHC class I molecule
Cell Type
Lymphocytes, Macrophages, NK cells, Thymocytes
Biology Area
Immunology
Molecular Family
CD Molecules
Antigen References

1. Johnson P, et al. 1985. EMBO J. 4:2539.
2. Thomas ML, et al. 1983. Eur. J. Immunol. 13:855.

Gene ID
24930 View all products for this Gene ID
UniProt
View information about CD8alpha on UniProt.org

Related FAQs

There are no FAQs for this product.
Go To Top Version: 3    Revision Date: 06.27.2014

For Research Use Only. Not for diagnostic or therapeutic use.

 

This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.

 

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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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