The Klrb1a protein is critical for stimulating NK cell cytotoxicity and contributes to immune defense mechanisms.Klrb1a exists as a homodimer with disulfide bonds and complexly regulates NK cell activity.Klrb1a Protein, Mouse (HEK293, His) is the recombinant mouse-derived Klrb1a protein, expressed by HEK293 , with N-His labeled tag.