Biologists at the U.S. Department of Energy's Brookhaven National Laboratory and their collaborators have discovered an aberrant protein that's deadly to bacteria. In a paper just published in the journal PLOS ONE, the scientists describe how this erroneously built protein mimics the action of aminoglycosides, a class of antibiotics. The newly discovered protein could serve as a model to help scientists unravel details of those drugs' lethal effects on bacteria—and potentially point the way to future antibiotics.