Invitrogen™ CD8b Monoclonal Antibody (eBioH35-17.2 (H35-17.2)), eFluor™ 450, eBioscience™

Catalog No.	Quantity
50-112-8793	100 μg

Catalog No. 50-112-8793 Supplier Invitrogen™ Supplier No. 48008382

Description

Rat Monoclonal Antibody

The eBioH35-17.2 monoclonal antibody reacts with the mouse CD8 beta molecule. The CD8 beta chain associates with the CD8 alpha chain to form the CD8 alpha/beta heterodimer expressed on the surface of a majority of thymocytes, and on peripheral cytotoxic alpha beta TCR T cells. CD8 binds to MHC class I and plays a role in T cell development and activation of mature T cells. Applications Reported: This H35-17.2 antibody has been reported for use in flow cytometric analysis. Applications Tested: This H35-17.2 antibody has been tested by flow cytometric analysis of mouse splenocytes. This can be used at less than or equal to 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. 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 445 nm and is excited with the Violet laser (405 nm). Please make sure that your instrument is capable of detecting this fluorochome. Excitation: 405 nm; Emission: 445 nm; Laser: Violet Laser. Filtration: 0.2 μm post-manufacturing filtered.

The CD8B 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, acting as a coreceptor, and the T-cell receptor on the T lymphocyte recognize antigens displayed by an antigen presenting cell (APC) in the context of class I MHC molecules. The functional coreceptor is either a homodimer composed of two alpha chains, or 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 beta chain isoforms. Multiple alternatively spliced transcript variants encoding distinct membrane associated or secreted isoforms have been described. A pseudogene, also located on chromosome 2, has been identified.

Specifications

• Antigen: CD8b
• Applications: Flow Cytometry
• Classification: Monoclonal
• Clone: eBioH35-17.2 (H35-17.2)
• Concentration: 0.2 mg/mL
• Conjugate: eFluor 450
• Formulation: PBS with 0.09% sodium azide; pH 7.2
• Gene: Cd8b1
• Gene Accession No.: P10300
• Gene Alias: CD8; CD8 antigen 37 kDa chain; CD8 antigen beta polypeptide; CD8 antigen beta polypeptide precursor; CD8 antigen beta-chain; CD8 antigen, beta chain; CD8 antigen, beta chain 1; CD8 antigen, beta polypeptide 1 (p37); CD8 antigen, beta-chain; CD8 beta; CD8 beta chain; CD8a; CD8alpha; CD8B; CD8b antigen; CD8b molecule; CD8b molecule pseudogene; CD8B1; CD8beta; CD8BP; LEU2; Leu-2; LY3; Ly-3; Ly-C; Lymphocyte antigen 3; Lyt3; Lyt-3; MAL; OX-8 membrane antigen; p32; P37; T lymphocyte surface glycoprotein beta chain; T-cell membrane glycoprotein Ly-3; T-cell surface glycoprotein; T-cell surface glycoprotein CD8 beta chain; T-cell surface glycoprotein Lyt-3
• Gene Symbols: Cd8b1
• Host Species: Rat
• Purification Method: Affinity chromatography
• Quantity: 100 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 12526
• Target Species: Mouse
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG2b κ

Frequently Asked Questions (FAQs)

I am unable to analyze my cells stained with eFluor Organic Dyes today. What options do I have?

Our options will depend on the samples you are analyzing.

If cell viability is not critical, you can store your stained samples at 4 degrees C or on ice overnight in the dark and analyze the following day.

For samples stained with eFluor organic fluorochromes, we recommend that cells be suspended in 100 uL of Flow Cytometry Staining Buffer (Cat. No. 00-4222) and 100 uL of eBioscience IC Fixation Buffer (Cat. No. 00-8222); samples can be incubated for up to 3 days at 4 degrees C in the dark. Alternatively, the 1-step Fix/Lyse Solution (Cat. No. 00-5333) can be used. This is a great option when working with whole blood but also works for other cell types.

What is the difference between eFluor Organic Dyes and eVolve Qdots?

The eFluor Organic Dyes (eFluor 450, APC-eFluor 780, PerCP-eFluor 710, eFluor 710) are conventional fluorochromes. In contrast, the eVolve line of products are Quantum dots.

Are the eFluor Organic Dyes photo-labile?

As with other fluorochromes, we recommend minimal exposure to light to maintain optimal signal.