1. UT/ORNL Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
2. Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
3. Bioproducts Institute, Department of Chemical & Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
4. Department of Chemistry, The University of British Columbia, Vancouver, BC V6T 1Z1, Canada
5. Department of Wood Science, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
6. Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996, USA