Product Information

Contents: Fluorescein isothiocyanate (FITC) anti-rat CD8b (beta subunit; CD8b, Ly-3)
Catalog Number: 11-0080
Sizes: 50 ug, 500 ug
Formulation: Phosphate buffered saline, pH 7.2, less than or equal to 0.09% NaN₃
Storage Conditions: Store at 4°C.
DO NOT FREEZE.
LIGHT-SENSITIVE MATERIAL.
Clone: eBio341 (341)
Isotype: Mouse IgG1, κ

Staining of Lou rat thymocytes with 0.25 μg of FITC Mouse IgG1, K Iso Cntrl (cat. 11-4714) (open histogram) or 0.25 μg of FITC anti-rat CD8b (341) (colored histogram). Cells in the lymphocyte gate were used for analysis.

Available Formats of This Product
Cat. No.	Format	Excite (nm)	Emit (nm)	Reported Applications
11-0080	Fluorescein isothiocyanate (FITC) anti-rat CD8b (beta subunit; CD8b, Ly-3)	488	518	FC
12-0080	Phycoerythrin (PE) anti-rat CD8b (beta subunit; CD8b, Ly-3)	488	575	FC
14-0080	Affinity Purified anti-rat CD8b (beta subunit; CD8b, Ly-3)	N/A	N/A	FA FC IHC IP WB
16-0080	Functional Grade* Purified anti-rat CD8b (beta subunit; CD8b, Ly-3)	N/A	N/A	FA FC IHC(Paraffin)
*Functional Grade™ (FG™) Purified: Azide-free, sterile-filtered, and endotoxin < 0.001 ng/µg (unless otherwise noted). *Functional Grade™ (FG™) Biotin: Azide-free, sterile-filtered, and endotoxin < 0.05 ng/µg. Purified: Contains azide, not sterile-filtered, and not endotoxin tested.

Questions? Please consult our answers to frequently asked questions at http://www.ebioscience.com/faq.

Description

The eBio341 monoclonal antibody reacts with rat CD8β. CD8β is a member of the immunoglobulin superfamily which heterodimerizes with CD8α to form the CD8 antigen expressed on CD4+CD8+, double-positive thymocytes, the majority of MHC class I-restricted peripheral T cells, and on some macrophages. CD8β expression is absent in athymic mice, which are populated by T-cells expressing CD8α homodimers. This has led to the idea that CD8β expression is dependent on the development of T cells in the thymus. CD8 binds to MHC class I expressed on the surface of antigen-presenting cells during antigen presentation, and participates in T-cell receptor signal transduction through association with the kinase Lck.

Applications Reported

For research use only, not for diagnostic or therapeutic use. This eBio341 (341) antibody has been reported for use in flow cytometric analysis.

Applications Tested

This eBio341 (341) antibody has been tested by flow cytometric analysis of rat splenocytes and thymocytes. This can be used at less than or equal to 0.5 μg per million cells in a 100 μl total staining volume. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

References

Torres-Nagel N, Kraus E, Brown MH, Tiefenthaler G, Mitnacht R, Williams AF, Hunig T. Differential thymus dependence of rat CD8 isoform expression. Eur J Immunol. 1992 Nov;22(11):2841-8. (341, FC, FA PubMed)

Kuhnlein P, Park JH, Herrmann T, Elbe A, Hunig T. Identification and characterization of rat gamma/delta T lymphocytes in peripheral lymphoid organs, small intestine, and skin with a monoclonal antibody to a constant determinant of the gamma/delta T cell receptor. J Immunol. 1994 Aug 1;153(3):979-86. (341, FC, PubMed)

Related Products

Cat. 11-0082    Fluorescein isothiocyanate (FITC) Rat anti-mouse CD8 (beta subunit; CD8b, Ly-3) (clone CT-CD8b)
Cat. 11-0083    Fluorescein isothiocyanate (FITC) anti-mouse CD8 (beta subunit; CD8b, Ly-3) (clone eBioH35-17.2 (H35-17.2))
Cat. 11-4714    Fluorescein isothiocyanate (FITC) Mouse IgG1, K Isotype Control