Recombinant E.coli cry1Ab Protein，His

Cry1Ab recombinant protein is derived from the bacterium *Bacillus thuringiensis* (Bt), known for its insecticidal properties. This protein has garnered significant interest in agricultural biotechnology due to its effectiveness against various insect pests, particularly from the orders Lepidoptera, which includes many harmful agricultural pests. The research into Cry1Ab began in the late 20th century when scientists discovered that Bt produces proteins that are toxic to specific insects upon ingestion. These proteins act by binding to midgut receptors in the insects, leading to cell lysis and ultimately death. The ability to express Cry1Ab in genetically modified crops, such as Bt cotton and Bt corn, provides a sustainable solution for pest control, reducing the reliance on chemical pesticides and promoting environmentally friendly farming practices. Studies have focused on optimizing the expression levels, stability, and efficacy of the Cry1Ab protein to enhance its pest resistance properties. Furthermore, understanding the molecular mechanisms of its action and potential non-target effects is crucial for evaluating the safety and ecological impact of Bt crops. As agricultural demands grow alongside concerns about insect resistance and environmental sustainability, the research on Cry1Ab recombinant protein continues to play a pivotal role in developing innovative pest management strategies.