Revision 8

#85336Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IP, IHC-P, FC-FP

REACTIVITY:

H Mk

SENSITIVITY:

Endogenous

MW (kDa):

29

Source/Isotype:

Rabbit IgG

UniProt ID:

#P01732

Entrez-Gene Id:

925

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:100
Immunohistochemistry (Paraffin) 1:100 - 1:400
Flow Cytometry (Fixed/Permeabilized) 1:50 - 1:200

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

For a carrier free (BSA and azide free) version of this product see product #81575.

Specificity / Sensitivity

CD8α (D8A8Y) Rabbit mAb recognizes endogenous levels of total CD8α protein. Monkey species reactivity is Immunohistochemistry (Paraffin) only.

Species Reactivity:

Human, Monkey

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human CD8α protein.

Background

Cluster of Differentiation 8 (CD8) is a disulphide-linked heterodimer consisting of the unrelated α and β subunits. Each subunit is a glycoprotein composed of a single extracellular Ig-like domain, a polypeptide linker, a transmembrane part and a short cytoplasmic tail. On T cells, CD8 is the coreceptor for the T cell receptor (TCR), and these two distinct structures recognize the Antigen–Major Histocompatibility Complex (MHC). Specifically, the Ig-like domain of CD8α interacts with the α3-domain of the MHC class I molecule. CD8 ensures specificity of the TCR–antigen interaction, prolongs the contact between the T cell and the antigen presenting cell, and the α chain recruits the tyrosine kinase Lck, which is essential for T cell activation (1).

  1. Zamoyska, R. (1994) Immunity 1, 243-46.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation IHC-P: Immunohistochemistry (Paraffin) FC-FP: Flow Cytometry (Fixed/Permeabilized)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalStain is a registered trademark of Cell Signaling Technology, Inc.
The transfer of this product is contingent on the buyer using the purchased product solely in research conducted by the buyer (whether the buyer is an academic or for-profit entity), for Immunocytochemistry, high content screening (HCS) analysis, or flow cytometry applications. The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) resale, whether or not such product or its components are resold for use in research; or for any other commercial purpose. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad, CA 92008 USA or [email protected].
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

Revision 8
#85336

CD8α (D8A8Y) Rabbit mAb

Western Blotting Image 1: CD8α (D8A8Y) Rabbit mAb Expand Image
Western blot analysis of extracts from MOLT-4 and PC-3 cells using CD8α (D8A8Y) Rabbit mAb (upper) and β-Actin (D6A8) Rabbit mAb #8457 (lower).
No image available
Immunohistochemistry Image 1: CD8α (D8A8Y) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human Crohn's diseased colon using CD8a (D8A8Y) Rabbit mAb.
Immunohistochemistry Image 2: CD8α (D8A8Y) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human lung carcinoma using CD8a (D8A8Y) Rabbit mAb.
Immunohistochemistry Image 3: CD8α (D8A8Y) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human lymphoma using CD8a (D8A8Y) Rabbit mAb.
Immunohistochemistry Image 4: CD8α (D8A8Y) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded normal rhesus monkey spleen using CD8α (D8A8Y) Rabbit mAb.
Flow Cytometry Image 1: CD8α (D8A8Y) Rabbit mAb Expand Image
Flow cytometric analysis of fixed and permeabilized human whole blood using CD8α (D8A8Y) Rabbit mAb co-stained with CD4-PE, showing a distinct CD8α positive population with no cross reactivity to CD4 positive cells. Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 647 Conjugate) #4414 was used as a secondary antibody.