Scientists at the U.S. Department of Energy’s Brookhaven National Laboratory and the Albert Einstein College of Medicine have produced the first molecular-scale images of DNA binding to an adenovirus enzyme — a step they believe is essential for the virus to cause infection. The images, which appear on the cover of the October 2004 issue of Molecular and Cellular Proteomics, show how binding to DNA may stimulate the enzyme and are already being used to design new antiviral drugs to block this interaction.