Thermo Fisher Scientific CD8a Monoclonal Antibody (YCATE55.9), PerCP-eFluor 710, eBioscience

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

5 µL (0.25 µg)/test

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Product Specifications

Published species

Dog

Host/Isotype

Rat / IgG1, kappa

Recommended Isotype Control

Rat IgG1 kappa Isotype Control (eBRG1), PerCP-eFluor™ 710, eBioscience™

Class

Monoclonal

Type

Antibody

Clone

YCATE55.9

Conjugate

PerCP-eFluor™ 710 PerCP-eFluor™ 710 PerCP-eFluor™ 710

View additional formats

• APC
• eFluor 450
• PE
• Super Bright 436
• Super Bright 600
• Super Bright 702
• Request custom conjugation

Excitation/Emission Max

482/708 nm View spectra

Form

Liquid

Concentration

5 µL/Test

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Wet ice

RRID

AB_2573762

Product Specific Information

Description: This YCATE55.9 monoclonal antibody reacts with canine CD8 alpha. This cell surface receptor is expressed either as a heterodimer with the CD8 beta chain (CD8 alpha/beta) or as a homodimer (CD8 alpha/alpha). In dogs, CD8 alpha is expressed on thymocytes, a subset of mature T cells, NK cells, and intestinal intraepithelial lymphocytes (IELs). CD8 binds to MHC class I and plays a role in thymocyte development and mature T cell activation.

This monoclonal antibody has been reported to inhibit cytotoxic T cell generation and function in vitro. In addition, this antibody has been reported to be immunosuppressive in vivo.

Applications Reported: This YCATE55.9 antibody has been reported for use in flow cytometric analysis.

Applications Tested: This YCATE55.9 antibody has been pre-titrated and tested by flow cytometric analysis of normal canine peripheral blood cells. This can be used at 5 µL (0.25 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.

PerCP-eFluor® 710 emits at 710 nm and is excited with the blue laser (488 nm); it can be used in place of PerCP-Cyanine5.5. We recommend using a 710/50 bandpass filter, however, the 695/40 bandpass filter is an acceptable alternative. Please make sure that your instrument is capable of detecting this fluorochrome.

Fixation: Samples can be stored in IC Fixation Buffer (Product # 00-8222) (100 µL cell sample + 100 µL IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.

Excitation: 488 nm; Emission: 710 nm; Laser: Blue Laser.

Filtration: 0.2 µm post-manufacturing filtered.

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.