Protein stability refers to the ability of a protein to maintain its proper three-dimensional structure and function under various environmental conditions, such as changes in temperature, pH, or chemical exposure. Proteins can become unstable and denatured under unfavorable conditions, leading to their loss of function. Understanding protein stability is crucial in numerous fields, such as biochemistry, biotechnology, and pharmaceuticals, as it can impact protein function, activity, and overall efficacy. Researchers study protein stability to identify factors that affect protein stability and develop strategies to enhance protein stability for various applications.