Enzyme News

An enzyme is a type of protein that acts as a catalyst in various biochemical reactions, making them occur much more rapidly than they would otherwise. These reactions are crucial to life, supporting processes such as digestion, metabolism, and energy production in cells. Each enzyme is specific to a particular reaction or type of reaction due to the shape of its active site, where the substrate molecules bind and undergo a chemical transformation. This specificity follows the “lock and key” model where only the correctly sized and shaped substrate fits into the enzyme, similar to a key fitting into a specific lock. Enzymes are involved in nearly all cellular activities, including DNA replication, repair, and transcription, protein synthesis, and signal transduction pathways. The efficiency and regulation of enzymes are central to the control of biological processes, and their malfunction can lead to diseases and metabolic disorders.