A team of researchers from the Georgia Institute of Technology in Atlanta, the Universidad de Granada and Instituto Andaluz de Ciencias de la Tierra, Spain, has reported about the laboratory resurrection of several 2-3-billion-year-old proteins that are ancient ancestors of the enzymes that enable today’s antibiotic-resistant bacteria to shrug off huge doses of penicillins, cephalosporins and other drugs. Structural comparison of the TEM-1 β-lactamase,...
