The Dereplicator Pipeline (IMAGE) University of California - San Diego Caption The algorithms the researchers developed scour mass-spectrometry data to discover so-called peptidic natural products (PNPs) -- widely used bioactive compounds that include many antibiotics. Credit UC San Diego Usage Restrictions Please credit UC San Diego 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.