– CD200 and its receptors are highly expressed in the lung, on epithelial cells and leukocytes, and emerging evidence links dysregulation of the CD200 pathway with asthma. Moreover, pharmacological modulation of CD200 receptors was shown to improve clinical and inflammatory outcomes of preclinical asthma models. CD200 Protein, Mouse, Recombinant (aa 31-232, His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 23.6 kDa and the accession number is O54901.