IL-18BP Protein belongs to immunoglobulin superfamily that bind to IL-18 and inhibits its activity. IL-18BP Protein functions as an inhibitor of the Th1 cytokine response[1]. IL-18BP Protein, Human (HEK293, hFc) is the recombinant human-derived IL-18BP protein, expressed by HEK293 , with C-hFc labeled tag.