CD8b.2 Rat anti-Mouse, Brilliant Violet 786, Clone: 53-5.8, BD Optibuild™

Rat Monoclonal Antibody

Supplier:  BD Biosciences 740843

Catalog No. BDB740843

Description

The 53-5.8 monoclonal antibody specifically binds to the β chain of the CD8 differentiation antigen (Ly-3.2 or Lyt-3.2) of most mouse strains, having weak reactivity with Ly-3.1 strains (e.g., AKR, C58, MRL, PL). The CD8 α and α chains (CD8a) form heterodimers with the CD8 β chain (CD8b, Ly-3, or Lyt-3) on the surface of most thymocytes. A subpopulation of mature T lymphocytes (i.e., MHC class I-restricted T cells, including most T suppressor/cytotoxic cells) expresses almost exclusively the CD8 αβ heterodimer (the α chain is absent). Subsets of γδ TCR-bearing T cells, intestinal intraepithelial lymphocytes, and dendritic cells express CD8a without CD8b. It has been suggested that the expression of the CD8a/CD8b heterodimer is restricted to T lymphocytes which matured in the thymus or in an extrathymic environment that had been influenced by thymus-initiated neuroendocrine signals. CD8 is an antigen coreceptor on the T-cell surface which interacts with MHC class I molecules on antigen-presenting cells. It participates in T-cell activation through its association with the T-cell receptor complex and protein tyrosine kinase lck (p56lck).

The antibody was conjugated to BD Horizon™ BV786 which is part of the BD Horizon Brilliant™ Violet family of dyes. This dye is a tandem fluorochrome of BD Horizon BV421 with an Ex Max of 405-nm and an acceptor dye with an Em Max at 786-nm. BD Horizon BV786 can be excited by the violet laser and detected in a filter used to detect Cy™7-like dyes (eg, 780/60-nm filter).

Specifications

• Antigen: CD8b.2
• Classification: Monoclonal
• Concentration: 0.2mg/mL
• Description: Ly-3.2; Lyt-3.2; CD8b.2
• Host Species: Rat
• Purification Method: Affinity Purified
• Regulatory Status: RUO
• Target Species: Mouse
• Isotype: IgG1 κ

• Applications: Flow Cytometry
• Clone: 53-5.8
• Conjugate: Brilliant Violet 786
• Formulation: Aqueous buffered solution containing ≤0.09% sodium azide.
• Immunogen: Mouse thymus or spleen
• Quantity: 50 μg
• Primary or Secondary: Primary
• Content And Storage: Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

For Research Use Only