CD300b/LMIR5/CD300LB Fc Chimer

The CD300 receptor family members are a group of molecules that modulate a variety of immune cell processes. The CD300 receptor family consists of members with activating and inhibitory capabilities mainly expressed on the surface of immune cells. LMIR5, also known as CD300b, CD300LB, CLM-7, and IREM-3, is a glycoprotein member of the immunoglobulin superfamily. Human LMIR5 consists of a 134 amino acid (aa) extracellular domain (ECD) with one Ig-like V-type domain, a 21 amino acid (aa) transmembrane segment, and a 29 aa cytoplasmic domain. Studies have shown that CD300b recognizes PS as a ligand and regulates phagocytosis of apoptotic cells through DAP12 signaling pathway.