The PILR-β protein is a paired immune system modulator and is considered a signal-activated receptor that associates with cell surface ITAM adapters such as DAP12. It interacts with CD99 and may help natural killer cells recognize target cells and activate dendritic cells. PILR-beta Protein, Mouse (HEK293, Fc) is the recombinant mouse-derived PILR-beta protein, expressed by HEK293 , with C-hFc labeled tag.