Protein Engineering is a scientific field that focuses on designing and modifying proteins to enhance their properties or functions. By altering the amino acid sequences of proteins, researchers can create new proteins with specific characteristics, such as improved stability, activity, or binding capabilities. This process often involves techniques like site-directed mutagenesis and computational modeling. The applications of protein engineering are vast, impacting areas such as medicine, biotechnology, and environmental science. For instance, engineered proteins can be used in the development of new drugs, enzymes for industrial processes, or even in creating biofuels. This innovative approach holds great promise for addressing various global challenges.