PE/Dazzle™ 594 anti-mouse CD276 (B7-H3)

Antibodies Single
Flow Cytometry
Rat IgG2a, κ
Mouse B7-H3 transfected L cell and P815


B7-H3 is a type I transmembrane protein belonging to the B7 family of co-stimulatory proteins. B7-H3 is mostly expressed on professional APCs including B cells, macrophages, and dendritic cells at low levels. It is detected on various human and murine tumor cells, nasal and airway epithelial cells. Its expression on dendritic cells appears to be up-regulated by LPS. Initial studies have shown that B7-H3 provides a stimulatory signal to T cells. However, recent studies suggest a negative regulatory role for B7-H3 in T cell responses. Mouse B7-H3 protein inhibited T cell activation and effector cytokine production. Thus, the immunological function of B7-H3 remains unclear. B7-H3 is involved in the suppression of Th1-mediated immune responses and plays an important role in the development of pathogenic Th2 cells in a murine asthma model. Monoclonal antibody against B7-H3 enhances T cell proliferation in vitro and leads to exacerbated EAE in vivo. It has been reported that the Triggering Receptor Expressed on Myeloid cells (TREM)-like Transcript 2 (TLT-2, TREML2) is a receptor for B7-H3 in mice, although it remains controversial. Further studies are needed to identify the receptor of B7-H3.


Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.

Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 1.0 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

* PE/Dazzle™ 594 has a maximum excitation of 566 nm and a maximum emission of 610 nm.


1. Nagashima O, et al. 2008. J. Immunol. 181:4062
2. Prasad DVR, et al. 2004. J. Immunol. 173:2500
3. Sun M, et al. 2002. J. Immunol. 168:6294
4. Xu J, et al. 2006. Cellular and Molecular Immunology. 3(3):235
5. Ford JW, et al. 2009. Curr Opin Immunol. 21(1):38
6. Leitner J, et al. 2009. Eur. J. Immunol. 2009. 39(7):1754