About the Authors
Department of Mathematics and Institute of Applied Mathematics, University of British Columbia, Vancouver, British Columbia, Canada
Alberta Ingenuity Centre for Carbohydrate Science, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
The authors have declared that no competing interests exist.
Conceived and designed the experiments: CC. Performed the experiments: CC. Analyzed the data: RD CC. Wrote the paper: RD CC DC. Proposed and developed the model: RD DC.