Thermo Fisher Scientific CD8a Monoclonal Antibody (OX8), eFluor 450, eBioscience

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

0.5 µg/test

View 4 publications 4 publications

Product Specifications

Species Reactivity

Rat

Published species

Not Applicable

Host/Isotype

Mouse / IgG1, kappa

Recommended Isotype Control

Mouse IgG1 kappa Isotype Control (P3.6.2.8.1), eFluor™ 450, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

OX8

Conjugate

eFluor™ 450 eFluor™ 450 eFluor™ 450

View additional formats

• Unconjugated
• Alexa Fluor 700
• APC
• FITC
• PE
• PE-Cyanine7
• PerCP-eFluor 710
• Super Bright 436
• Super Bright 600
• Super Bright 780
• Request custom conjugation

Excitation/Emission Max

405/445 nm View spectra

Form

Liquid

Concentration

0.2 mg/mL

Purification

Affinity chromatography

Storage buffer

PBS, pH 7.2

Contains

0.09% sodium azide

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_2848384

Product Specific Information

Description: The OX8 monoclonal antibody reacts with rat CD8 alpha. CD8 alpha is a member of the immunoglobulin superfamily which heterodimerizes with CD8 beta 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. 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: This OX8 antibody has been reported for use in flow cytometric analysis.

Applications Tested: This OX8 antibody has been tested by flow cytometric analysis of rat splenocytes. This may be used at less than or equal to 0.5 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

eFluor 450 is an alternative to Pacific Blue. eFluor 450 emits at 446 nm and is excited with the violet laser line (405 nm). Please make sure that your instrument is capable of detecting this fluorochrome.

Excitation: 405 nm; Emission: 445 nm; Laser: Violet Laser

Target Information

Cluster of differentiation 8 (CD8), a type I transmembrane glycoprotein of the immunoglobulin family of receptors, plays an integral role in signal transduction, and T cell differentiation and activation. CD8 is predominantly expressed on T cells as a disulfide-linked heterodimer of CD8alpha and CD8beta, where it functions as a co-receptor, along with T cell receptor (TCR), for major histocompatibilty complex class I (MHC-I) molecules; whereas its counterpart, CD4, acts as a co-receptor for MHC-II molecules. CD8 exists on the cell surface, where the CD8alpha chain is essential for binding to MHC-I. CD8 is also expressed on a subset of T cells, NK cells, monocytes and dendritic cells as disulfide-linked homodimers of CD8alpha. Ligation of MHC-I/peptide complexes presented by antigen-presenting cells (APCs), triggers the recruitment of lymphocyte-specific protein tyrosine kinase (Lck), which leads to lymphokine production, motility and cytotoxic T lymphocyte (CTL) activation. Once activated, CTLs play a crucial role in the clearance of pathogens and tumor cells. Differentiation of naive CD8+ T cells into CTLs is strongly enhanced by IL-2, IL-12 and TGF-beta1.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.