1. Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA.
2. Department of Biological Sciences, University of Southern California, Los Angeles, California, USA.
3. BioTechnology Institute, University of Minnesota—Twin Cities, St. Paul, Minnesota, USA.
4. Department of Plant and Microbial Biology, University of Minnesota—Twin Cities, St. Paul, Minnesota, USA.
5. Department of Chemistry, University of Southern California, Los Angeles, California, USA.