Stanley Fields, Howard Hughes Medical Institute professor of genetics and medicine at University of Washington (Seattle), has received the 2000 Chiron Corporation Biotechnology Research Award. The purpose of the award is to honor “outstanding contributions to the application of biotechnology through fundamental research, development research, or reduction to practice.” Fields is being recognized for development of the two-hybrid system for detecting protein-protein interactions in vivo. Since publication of its description a decade ago, the two-hybrid system has proven a powerful tool to unravel the complex relationships between cellular components. The award will be presented at the American Society for Microbiology General Meeting, May 21-25 2000, Los Angeles, CA, where Fields will receive $5000 and deliver the Chiron Award Lecture. Past award winners include Craig Venter (1999), Kary Mullis (1992), and Stanley Cohen and Herbert Boyer (1988).