1. Deconstruction Division, Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, California, 94608, USA
2. Department of Biomass Science and Conversion Technology, Sandia National Laboratories, 7011 East Avenue, Livermore, California 94551, USA
3. Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA