Protein engineering via mutagenesis allows researchers to modulate protein activity and characterize structure- function relationships, which enriches our understanding of basic cellular processes and disease mechanisms, fueling discoveries in new therapies for complex diseases such as cancer. Stratagene has been a pioneer in developing innovative mutagenesis tools for the past two decades. Cited in thousands of publications, our QuikChange® site-directed mutagenesis and GeneMorph® random mutagenesis kits are the tools behind many important experiments and scientifc breakthroughs.