Acyltransferases are a group of enzymes that facilitate the transfer of acyl groups from one molecule to another. These enzymes play a crucial role in various biological processes, including lipid metabolism and the synthesis of complex molecules. By transferring acyl groups, they help in the formation of important compounds like phospholipids and triglycerides, which are essential for cell membrane structure and energy storage. These enzymes are found in many organisms, from bacteria to humans, and are vital for maintaining cellular functions. Acyltransferases can be classified into different types based on their specific substrates and the acyl groups they transfer. Understanding their mechanisms is important for research in fields like biochemistry and pharmacology, particularly in developing drugs that target metabolic disorders.