Invitrogen™ CD8a Monoclonal Antibody (53-6.7), NovaFluor™ Red 710, eBioscience™

Catalog No.	Quantity
M003T02R04A	25 μg

Catalog No. M003T02R04A Supplier Invitrogen™ Supplier No. M003T02R04A

Description

Rat Monoclonal Antibody

The 53-6.7 monoclonal antibody reacts with the mouse CD8a molecule. This product contains 1 vial of NovaFluor conjugate and 1 vial of CellBlox Plus Blocking Buffer. Applications Tested This 53-6.7 antibody has been tested by flow cytometric analysis of mouse 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. Master mixes Master mixes of NFs should be made at 2-8 °C and may be made up to 4 hours ahead of time. We do not recommend storing master mixes containing NovaFluor conjugates overnight or longer. Whole Blood compatibility When utilizing whole blood (as opposed to density-gradient-purified PBMC), we recommend lysing red blood cells in bulk prior to staining with NovaFluor conjugates. See the Bulk Lysis of Human Whole Blood protocol here. Staining of whole blood with NovaFluor conjugates followed by lysis of red blood cells may result in higher-than-expected background staining. Viability dye compatibility NovaFluor dyes are not compatible with DNA intercalating viability dyes. Do not use viability dyes such as p...

CD8, also known as cluster of differentiation 8, is a type I transmembrane glycoprotein of the immunoglobulin family that plays a crucial role in T cell differentiation, activation, and signal transduction. It is expressed as either a heterodimer (CD8 alpha beta) or a homodimer (CD8 alpha alpha). The CD8 alpha beta form is predominantly found on the majority of thymocytes and a subpopulation of mature alpha beta TCR T cells, while the CD8 alpha alpha form is expressed on gamma delta TCR T cells, a subset of intestinal intraepithelial lymphocytes (IELs), and dendritic cells. CD8 functions as a co-receptor for major histocompatibility complex class I (MHC-I) molecules, working alongside the T cell receptor (TCR). The CD8 alpha 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 CD8 alpha. Upon ligation of MHC-I/peptide complexes presented by antigen-presenting cells (APCs), CD8 recruits lymphocyte-specific protein tyrosine kinase (Lck), leading to lymphokine production, increased motility, and activation of cytotoxic T lymphocytes (CTLs). Activated CTLs are vital for clearing pathogens and tumor cells. The differentiation of naive CD8+ T cells into CTLs is strongly enhanced by cytokines such as IL-2, IL-12, and TGF-beta1. Through its interactions with MHC-I and association with protein tyrosine kinase p56lck, CD8 plays a significant role in T cell development and the activation of mature T cells.

Specifications

• Antigen: CD8a
• Applications: Flow Cytometry
• Classification: Monoclonal
• Clone: 53-6.7
• Concentration: 0.1 mg/mL
• Conjugate: NovaFluor Red 710
• Formulation: PBS with 0.09% sodium azide; pH 7.2
• Gene: Cd8a
• Gene Accession No.: P01731, P10300
• Gene Alias: BB154331; CD8; CD8 alpha; CD8 alpha chain; CD8 alpha chain precursor; CD8 antigen; CD8 antigen 32 kDa chain; CD8 antigen 37 kDa chain; CD8 antigen alpha polypeptide; CD8 antigen alpha protein; CD8 antigen alpha protein precursor; CD8 antigen alpha-chain; CD8 antigen beta polypeptide; CD8 antigen beta polypeptide precursor; CD8 antigen beta-chain; CD8 antigen, alpha chain; CD8 antigen, alpha polypeptide; CD8 antigen, alpha polypeptide (p32); CD8 antigen, alpha-chain; CD8 antigen, beta chain; CD8 antigen, beta chain 1; CD8 antigen, beta polypeptide; CD8 antigen, beta polypeptide 1 (p37); CD8 antigen, beta-chain; CD8 beta; CD8 beta chain; CD8 beta-2; CD8a; CD8A antigen alpha; CD8a molecule; CD8A; T-cell surface glycoprotein; CD8alpha; CD8B; CD8b antigen; CD8b molecule; CD8b molecule pseudogene; Cd8b1; CD8beta; CD8BP; fCD8; LEU2; Leu-2; Leu2 T-lymphocyte antigen; leu-2a; Ly-2; LY3; Ly-3; Ly-35; Ly-B; Ly-C; Lymphocyte antigen 3; Lyt2; Lyt-2; Lyt-2.1 lymphocyte differentiation antigen (AA at 100); Lyt3; Lyt-3; MAL; membrane glycoprotein; membrane protein; OKT8 T-cell antigen; OX-8 membrane antigen; p32; P37; RHACD8-4; T cell co-receptor; T lymphocyte surface glycoprotein beta chain; T8 T-cell antigen; T-cell antigen Leu2; T-cell membrane glycoprotein Ly-3; T-cell surface glycoprotein; T-cell surface glycoprotein CD8 alpha chain; T-cell surface glycoprotein CD8 beta chain; T-cell surface glycoprotein Lyt-2; T-cell surface glycoprotein Lyt-3; T-cell surface molecule; T-lymphocyte differentiation antigen T8/Leu-2; type I transmembrane glycoprotein
• Gene Symbols: Cd8a, Cd8b1
• Host Species: Rat
• Purification Method: Affinity chromatography
• Quantity: 25 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 12525, 12526
• Target Species: Mouse
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Product Type: Antibody
• Form: Liquid
• Format: Liquid
• Isotype: IgG2a κ

Frequently Asked Questions (FAQs)

What fixation methods are compatible with NovaFluor dyes?

NovaFluor conjugates have been tested to be stable for up to 14 days on cells fixed with 1% formalin, 2% paraformaldehyde, eBioscience IC Fixation Buffer (Cat. No. 00-8222-49), or eBioscience Foxp3 / Transcription Factor Staining Buffer Set (Cat. No. 00-5523-00) when stored at 2-8 degrees C in the dark.

NovaFluor dyes can also be used as a surface stain prior to methanol fixation.