Fusion proteins are typically constructed by combining the binding domain of a cell surface receptor with the Fc portion of an antibody. The receptor portion functions as a decoy binding site to bind and capture ligand molecules that would otherwise bind to the endogenous receptor.
In this way fusion proteins are useful tools to block receptor signaling. Our fusion proteins are specifically formulated for in vivo use. They feature greater than 95% purity, ultra-low endotoxin levels, and are preservative, stabilizer, and carrier protein-free.