1. Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, California 94608, United States
2. Department of Chemical & Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
3. Department of Bioengineering, University of California, Berkeley, Berkeley, California 94720, United States
4. QB3 Institute, University of California, Berkeley, Berkeley, California 94270, United States
5. Biological Systems & Engineering, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States