Micromanagers

New classes of RNAs emerge as key players in the brain

RNA compels Georges St. Laurent III to go to the gym. The genetic molecule inspires him to eat right and take care of himself. His efforts are all aimed at maintaining the delicate machinery housed in his cells.

iStockphoto/S. Norcross

DATA PROCESSORS. Noncoding RNA molecules are versatile conveyors of information in cells and can carry both analog and digital messages.