CD300A belongs to the CD300 family and contains 1 Ig-like V-type (immunoglobulin-like) domain. The protein is expressed not only by natural killer (NK) cells but also by T-cell subsets, B-cells, dendritic cells, mast cells, granulocytes and monocytes. CD300A is inhibitory receptor which may contribute to the down-regulation of cytolytic activity in natural killer (NK) cells, and to the down-regulation of mast cell degranulation.

CD300A Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 134 amino acids (18-128) and having a molecular mass of 14.7kDa. CD300A is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

The CD300A solution contains 20mM Tris-HCl buffer (pH 8.0), 0.15M NaCl, 1mM DTT and 10% glycerol.