In the production of enantio- and regiopure- intermediates for the process of producing a chemical compound of complex organic compounds, biotransformation is becoming more and more popular. Those chemical reactions which are difficult to perform by synthesis can be achieved by using enzymes or whole microbial cells. Pharmaceutical industry takes particular interest in performing Chemo enzymatic synthesis. In such process, choral pythons can be obtained enzymatic ally for further chemical processing. There are groups of the amino acids such as amino, Mercator, hydroxyl, carbonyl, carboxyl, guanidino, or imidazolyl. When the substrate is bound to the active site in ...