Anti-Mouse CD155 (PVR) – Purified in vivo GOLD™ Functional Grade

EL4 transfected with mouse CD155

This monoclonal antibody is aseptically packaged and formulated in 0.01 M phosphate buffered saline (150 mM NaCl) PBS pH 7.2 - 7.4 with no carrier protein, potassium, calcium or preservatives added. Due to inherent biochemical properties of antibodies, certain products may be prone to precipitation over time. Precipitation may be removed by aseptic centrifugation and/or filtration.

Functional grade preclinical antibodies are manufactured in an animal free facility using in vitro cell culture techniques and are purified by a multi-step process including the use of protein A or G to assure extremely low levels of endotoxins, leachable protein A or aggregates.

Functional grade preclinical antibodies may be stored sterile as received at 2-8°C for up to one month. For longer term storage, aseptically aliquot in working volumes without diluting and store at -80°C. Avoid Repeated Freeze Thaw Cycles.

Next Day 2-8°C

Clone 4.24.1 recognizes an epitope on mouse CD155.

CD155 is a transmembrane glycoprotein member of a subfamily of immunoglobulin-like adhesion receptors (nectins). CD155 is commonly known as Poliovirus Receptor (PVR) because of its involvement as a cellular receptor for poliovirus. The normal function of CD155 is to establish intercellular adherens junctions between epithelial cells. Of its 3 extracellular immunoglobulin-like domains (D1, D2, and D3), the virus only recognizes D1. CD155 interacts with both CD226 and CD96 to induce cytotoxicity of NK cells and CTL. The precise role of CD155 in the immune system remains to be elucidated, though it is suspected to be involved in intestinal humoral immune responses. Furthermore, it is thought that CD155 may be used to positively select MHC-independent T cells in the thymus.

CD155 is expressed at cell junctions on the primary vascular endothelial cells and is highly expressed on DP thymocytes.

CD226 (DNAM-1), CD96

Apart from its function of adhering junction among contacting epithelial cells, the interaction of DNAM-1 (CD226) with its ligands CD155 and CD112 (nectin 2) induces cytotoxcity of NK cells and CD8+ T cells and cytokine secretion.

1. Kourepini, E. et al. (2016) J. Immunol. 196(9):3570-3580.