CD4/CD8 Antibody Cocktail, Invitrogen™

Catalog No.	Quantity
PIMA514432	7 mL

Catalog No. PIMA514432 Supplier Thermo Scientific Supplier No. MA514432

Description

Antibody Cocktail

This CD4/CD8 monoclonal cocktail contains Mouse HRP CD4 (Clone 4B12, IgG1 kappa) and Rabbit AP CD8 (Clone SP16, IgG). It is designed for qualitative immunohistochemistry with normal and neoplastic formalin-fixed, paraffin-embedded tissues using the MultiVision anti-mouse/HRP + anti-rabbit/AP detection system (Catalog No. TL-012-MHRA). This cocktail is provided at an optimal concentration in an easy-to-use format for visualizing CD4 and CD8 lymphocyte subsets in red and blue, respectively. The use of rabbit monoclonal CD8 allows for superior staining, in both sensitivity and specificity, permiting the use of higher titers compared to mouse monoclonal antibodies. These cocktails are specially formulated from MultiVision polymers that provide increased sensitivity, time-savings, and detection simplicity. The MultiVision AP and HRP polymers are innovative, patented technology. The smaller amino acid polymer subunits minimize conflicts in binding the target protein resulting in more consistent staining and better signal amplification. Ultimately, this gives the user higher sensitivity and antibody efficiency as well as better signal-to-noise ratios. This system is biotin-free, which prevents background staining found with traditional biotin-based methods. The MultiVision polymer detection systems yield high quality double staining in less than 2 hours on formalin-fixed and paraffin-embedded tissue sections.

CD4, a single chain transmembrane glycoprotein, is found on a T cell subset (helper/inducer) representing 45% of peripheral blood lymphocytes. It is also present on 80% of thymocytes and at a lower level on monocytes. It is involved in recognition of antigen presented along with MHC class II by APCs. It serves as receptor for HIV. 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 corepressor with the T-cell receptor on the T lymphocyte to recognize antigens displayed by an antigen presenting cell (APC) 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.

Specifications

• Antigen: CD4/CD8
• Applications: Immunohistochemistry (Paraffin), Western Blot
• Classification: Cocktail
• Clone: 4B12, SP16, CD8-SP16
• Conjugate: Unconjugated
• Formulation: tissue culture supernatant with 0.09% sodium azide
• Gene: CD8B
• Gene Accession No.: P01730, P01732, P10966
• Gene Alias: BB154331; Cd4; CD4 antigen; CD4 antigen (p55); CD4 antigen p55; CD4 molecule; CD4 receptor; CD4mut; CD8; CD8 antigen; CD8 antigen, alpha chain; CD8 antigen, alpha polypeptide (p32); CD8 antigen, beta polypeptide 1 (p37); CD8A; CD8a molecule; CD8alpha; CD8b; CD8b molecule; CD8B1; CD8beta; L3T4; LEU2; Leu-2; Leu2 T-lymphocyte antigen; Ly-2; LY3; Ly-35; Ly-4; Ly-B; Lyt2; Lyt-2; Lyt-2.1 lymphocyte differentiation antigen (AA at 100); LYT3; MAL; OKT8 T-cell antigen; p32; P37; T cell co-receptor; T lymphocyte surface glycoprotein beta chain; T8 T-cell antigen; T-cell antigen Leu2; T-cell differentiation antigen L3T4; T-cell surface antigen T4/Leu-3; T-cell surface glycoprotein CD4; T-cell surface glycoprotein CD4 precursor (T-cell surface antigen T4/Leu-3) (T-cell differentiation antigen L3T4); T-cell surface glycoprotein CD8 alpha chain; T-cell surface glycoprotein CD8 beta chain; T-cell surface glycoprotein Lyt-2; T-lymphocyte differentiation antigen T8/Leu-2
• Gene Symbols: CD4, CD8A, CD8B
• Host Species: Mixed, Rabbit
• Immunogen: CD4-stimulated human leukocytes, CD8-synthetic peptide containing the 13 C-terminal amino acids of the cytoplasmic domain of the a-chain of the CD8 molecule
• Purification Method: purified
• Quantity: 7 mL
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 920, 925, 926
• Target Species: Human
• Content And Storage: 4° C
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG1