Enzymes, the micro machines in our cells, can evolve to perform new tasks when confronted with novel situations. But what if you want an enzyme to do an entirely different job -- one that it would never have to do in a cell? In a recent report published inACS Central Science, researchers show that they can mimic nature and perform evolution in a test tube, developing enzymes that can perform brand-new chemical reactions.

http://www.sciencedaily.com/releases/2015/04/150422084913.htm