1. Department of Chemistry, University of California, Berkeley, California 94720, United States
2. Department of Chemical and Biomolecular
Engineering, Department of Bioengineering, and QB3 Institute, University of California, Berkeley, California 94720, United States
3. Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, California 94608, United States
4. Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94270, United States