Enzyme expression is a research area focused on understanding how enzymes are produced by cells and how their levels can be regulated. Enzymes are proteins that act as biological catalysts, speeding up chemical reactions in cells. The expression of enzymes is controlled by a complex network of regulatory processes, including transcription, translation, and post-translational modifications. Research in this area seeks to uncover the mechanisms that govern enzyme expression, as well as how changes in enzyme levels can impact cellular function and disease. By studying enzyme expression, researchers aim to gain insights into the fundamental processes that drive cellular metabolism and inform the development of new therapeutic strategies.