TCR V beta 5.1/5.2, eFluor 450, clone: MR9-4, eBioscience™
Mouse Monoclonal Antibody
Manufacturer: Life Technologies LS48579682
The ability of T cell receptors (TCR) to discriminate foreign from self-peptides presented by major histocompatibility complex (MHC) class II molecules is essential for an effective adaptive immune response. TCR recognition of self-peptides has been linked to autoimmune disease. Mutant self-peptides have been associated with tumors. Engagement of TCRs by a family of bacterial toxins know as superantigens has been responsible for toxic shock syndrome. Autoantibodies to V beta segments of T cell receptors have been isolated from patients with rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE). The autoantibodies block TH1-mediated inflammatory autodestructive reactions and are believed to be a method by which the immune system compensates for disease. Most human T cells express the TCR alpha-beta and either CD4 or CD8 molecule (single positive, SP). A small number of T cells lack both CD4 and CD8 (double negative, DN). Increased percentages of alpha-beta DN T cells have been identified in some autoimmune and immunodeficiency disorders. Gamma-delta T cells are primarily found within the epithelium. They show less TCR diversity and recognize antigens differently than alpha-beta T cells. Subsets of gamma-delta T cells have shown antitumor and immunoregulatory activity.Description: This MR9-4 monoclonal antibody reacts with the mouse T cell receptor (TCR) V beta 5.1/5.2 chain. Composed of an alpha and beta chain, TCR specificity is typically determined by Va, Ja, Vb, Db, and Jb gene rearrangement. The MR9-4 antibody recognizes the V beta 5.1 and 5.2 chains on T cells from mouse strains with the b haplotype of the Tcrb gene, including C57BL/6, B10, and C58/J. V beta 5.1 and 5.2 are deleted in mouse strains that express MHC Class II I-E, including Balb/c, C3H, and DBA/2. Reports also indicate that V beta 5+ T cells recognize the OVA peptide.Applications Reported: This MR9-4 antibody has been reported for use in flow cytometric analysis.Applications Tested: This MR9-4 antibody has been tested by flow cytometric analysis of mouse lymph node cells. This can be used at less than or equal to 1 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: 0.2μm post-manufacturing filtered.
|TCR V beta 5.1/5.2|
|PBS with 0.1% gelatin and 0.09% sodium azide; pH 7.2|
|TCRV beta 5.1, TCRV beta 5.2, TCRV beta5.1, TCRV beta5.2, TCR V beta5.1, TCR V beta5.2, Vb5.1, Vbeta5.1, Vb5.2, Vbeta5.2|
|IgG1, kappa, kappa|
|Store at 2-8°C. Do not freeze. Light-sensitive material.|
For Research Use Only.