Drawing of the new DNA origami motor (IMAGE) Emory Health Sciences Caption ixteen strands of DNA, stacked four-by-four, form the beam-shaped chassis of the DNA motor (in gray). Bits of DNA (in green) protrude from the chassis like little feet. The motor is fueled by RNA laid on a track. The RNA binds with the DNA feet on the bottom face of the chassis. An enzyme targeting bound RNA then destroys these RNA molecules (grey and red). The process repeats, as more RNA pulls the DNA feet, tipping the chassis forward, causing it to roll. Credit Stephanie Jones, bio-illustrations.com Usage Restrictions Must include credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.