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CD8 alpha antibody [OKT8] (APC)

Anti-CD8 alpha antibody [OKT8] (APC) used in Flow cytometry (FACS). GTX01466-07

Cat. No. GTX01466-07

Host

Mouse

Clonality

Monoclonal

Clone Name

OKT8

Isotype

IgG2a

Application

FACS

Reactivity

Human
Package
100 test ($239)
PRODUCT

Summary

The OKT8 antibody is specific for the 32-34 kDa alpha chain of human CD8, known as CD8a or CD8 alpha. CD8a can form a homodimer (CD8 alpha-alpha), but is more commonly expressed as a heterodimer with a second chain known as CD8b or CD8 beta. CD8 acts as a co-receptor for antigen recognition and subsequent T cell activation that is initiated upon binding of the T cell receptor (TCR) to antigen-bearing MHC Class I molecules. The cytoplasmic domains of CD8 provide binding sites for the tyrosine kinase lck, facilitating intracellular signaling events that lead to T cell activation, development, and cytotoxic effector functions. CD8+ cytotoxic T cells (CTLs) play an important role in inducing cell death of tumor cells, as well as cells infected by virus, bacteria or parasites. The OKT8 antibody is widely used as a phenotypic marker for CD8 on cytotoxic T cells, thymocytes, as well as on certain cell types that do not also express the TCR, including some NK cells and lymphoid dendritic cells. If used together with alternative antibodies Anti-Human CD8a clone RPA-T8 or Anti-Human CD8a clone Hit8a, the OKT8 antibody will not block binding of RPA-T8 or Hit8a.

APPLICATION

Application Note

*Optimal dilutions/concentrations should be determined by the researcher.
Application Recommended Dilution
FACS 0.06 μg (5 μl) for 10⁵-10⁸ cells in 100 μl sample per test
Not tested in other applications.

Calculated MW

26 kDa. ( Note )

PROPERTIES

Form

Liquid

Buffer

10mM NaH₂PO₄, 150mM NaCl, 0.1% Gelatin

Preservative

0.09% Sodium azide

Storage

Store as concentrated solution. Centrifuge briefly prior to opening vial. Store at 4ºC. DO NOT FREEZE. Protect from light.

Concentration

0.012 mg/ml (Please refer to the vial label for the specific concentration.)

Purification

Purified by affinity chromatography
From tissue culture supernatant

Conjugation

Allophycocyanin (APC) Wavelength

Note

For laboratory research use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.

Purchasers shall not, and agree not to enable third parties to, analyze, copy, reverse engineer or otherwise attempt to determine the structure or sequence of the product.

TARGET

Synonyms

CD8a molecule , CD8 , CD8A , Leu2 , MAL , p32 , CD8 alpha

Cellular Localization

Cell membrane,Secreted

Background

The CD8 antigen is a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell-cell interactions within the immune system. The CD8 antigen acts as a coreceptor with the T-cell receptor on the T lymphocyte to recognize antigens displayed by an antigen presenting cell in the context of class I MHC molecules. The coreceptor functions as either a homodimer composed of two alpha chains or as a heterodimer composed of one alpha and one beta chain. Both alpha and beta chains share significant homology to immunoglobulin variable light chains. This gene encodes the CD8 alpha chain. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

Database

Research Area

DATA IMAGES

Anti-CD8 alpha antibody [OKT8] (APC) used in Flow cytometry (FACS). GTX01466-07

GTX01466-07 FACS Image

FACS analysis of human peripheral blood lymphocytes using GTX01466-07 CD8 alpha antibody [OKT8] (APC).
Solid lone : primary antibody
Dashed line : isotype control
antibody amount : 0.06 μg (5 μl)

REFERENCE

REVIEW

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SDS
Sodium Azide.pdf
Package List Price ($)
$ 239