About the Authors
School of Life Sciences, Center for Protein Science and Crystallography, The Chinese University of Hong Kong, Hong Kong, China
King's College London, Randall Division of Cell and Molecular Biophysics, London, United Kingdom
The authors have declared that no competing interests exist.
The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: YHF HCW MHY KBW. Performed the experiments: YHF HCW MHY PHL YWC. Analyzed the data: YHF HCW MHY YWC KBW. Contributed reagents/materials/analysis tools: YWC. Wrote the paper: YHF KBW.