B7-H6 is a 55 kDa glycosylated member of the B7 family of immune costimulatory proteins (1, 2). Mature B7-H6 consists of an extracellular domain (ECD) that with one Ig-like V domain and one Ig-like C1 domain, a transmembrane segment, and a cytoplasmic domain that contains one ITIM, one SH2, and one SH3 motif (3). Both of the Ig-like domains carry N-linked glycosylation (4). Within the ECD, cynomolgous B7-H6 shares 81%, 81%, 77% and 80% amino acid sequence identity with chimpanzee, orangutan, gibbon, and human B7-H6, respectively. Orthologs in mouse and rat have not been identified. The Ig-like V domain mediates 1:1 stoichiometric binding of B7-H6 to NKp30 expressed on NK cells (4, 5). It does not show binding to NKp44, NKp46, or NKG2D (3, 6). Ligation of NKp30 by B7-H6 induces NK cell activation and target cell cytolysis (3). B7-H6 is expressed on a wide range of hematopoietic, carcinoma, and melanoma tumor cells, which is consistent with the detection of NKp30 binding sites on many tumors (3, 7). B7-H6 is up-regulated on inflammatory monocytes and neutrophils, and a 30 kDa soluble fragment can be released by ADAM-10 or ADAM-17 mediated shedding (8, 9). The expression of B7-H6 on tumor cells correlates with cancer progression and patient's survival in human ovarian cancer (10).

References

Zou, W. and L. Chen (2008) Nat. Rev. Immunol. 8:467.
Bour-Jordan, H. et al. (2011) Immunol. Rev. 241:180.
Brandt, C.S. et al. (2009) J. Exp. Med. 206:1495.
Li, Y. et al. (2011) J. Exp. Med. 208:703.
Joyce, M.G. et al. (2011) Proc. Natl. Acad. Sci. USA 108:6223.
Arnon, T.I. et al. (2006) Semin. Cancer Biol. 16:348.
Byrd, A. et al. (2007) PLoS ONE 2:e1339.
Matta, J. et al. (2013) Blood 122:394.
Schlecker, E. et al. (2014) Cancer Res. 74:3429.
Zhou, Y. et al. (2015) Int. J. Clin. Exp. Pathol. 8:9428.

Long Name

B7 Homolog 6

Alternate Names

B7H6, DKFZp686I21167, DKFZp686O24166, NCR3LG1

Entrez Gene IDs

374383 (Human); 102121659 (Cynomolgus Monkey)

Gene Symbol

NCR3LG1

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This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

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Human/Cynomolgus Monkey B7-H6 Alexa Fluor™ Plus 405-conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # FAB10162AFP405

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Background: B7-H6