Stratagene offers innovative research tools to analyze your protein’s function, from the fastest, most efficient site-directed mutagenesis kits to our tandem affinity purification kit for the discovery of new protein interactions.

• New QuikChange® Lightning Site-Directed Mutagenesis Kit delivers faster, ultra-high fidelity results with Stratagene exclusive QuikChange® Lightning DNA polymerase fusion and optimized Dpn I enzyme. Engineered for speed and accuracy, QuikChange Lightning enzymes provide significantly shorter thermal cycling and digestion times with the same ultra-high fidelity as QuikChange® II kits.
• Create multiple mutant clones together through the introduction of multiple point mutations simultaneously with the QuikChange® Multi Site-Directed Mutagenesis Kits. It is an easy three-step non-PCR procedure that can be completed in just one day so you can get your mutant clone faster.  
• Interplay™ Mammalian Tandem Affinity Purification (TAP) System helps you identify protein-protein interactions with a gentle, two-step purification protocol. Interacting proteins remain bound after washing while background protein levels are reduced.