1. DOE Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, California 94608, United States
2. Sandia National Laboratories, Livermore, California 94550, United States
3. Environmental Genomics and Systems Biology, Biosciences, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
4. Joint Genome Institute, Department of Energy, 2800 Mitchell Drive, Walnut Creek, California 94598, United States