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CD8b Rat anti-Mouse, Brilliant Violet 421, Clone: H35-17.2, BD Optibuild™

Rat Monoclonal Antibody

Manufacturer:  BD Biosciences 740068

Catalog No. BDB740068


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Description

Description

The H35-17.2 monoclonal antibody specifically binds to both alloantigeneic forms of the β chain of the CD8 differentiation antigen (Ly-3 or Lyt- 3). 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 H35-17.2 mAb blocks T-cell-mediated cytolysis of allogeneic lymphoma cells.

The antibody was conjugated to BD Horizon™ BV421 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max at 421-nm, BD Horizon BV421 can be excited by the violet laser and detected in the standard Pacific Blue™ filter set (eg, 450/50-nm filter). BD Horizon BV421 conjugates are very bright, often exhibiting a 10 fold improvement in brightness compared to Pacific Blue conjugates.

Specifications

Specifications

CD8b
H35-17.2
Brilliant Violet 421
Aqueous buffered solution containing ≤0.09% sodium azide.
Rat
IgG2b, κ
50μg
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
Monoclonal
Flow Cytometry
0.2mg/mL
Ly-3; Lyt-3; Lymphocyte antigen 3; Ly-C; CD8b1
Affinity Purified
5-day MLR
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
RUO
Primary
Murine
Documents
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