About the Authors
Department of Biological Sciences, National University of Singapore, Singapore
X4 Beamline, Brookhaven National Laboratory, Upton, New York, United States of America
Institute of Biocomputation and Physics of Complex Systems (BIFI), Joint-Unit IQFR-CSIC-BIFI, and Department of Biochemistry and Molecular and Cell Biology, University of Zaragoza, Zaragoza, Spain, and Fundacion ARAID, Government of Aragon, Zaragoza, Spain
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JSi. Performed the experiments: AP CJ YQ. Analyzed the data: AP CJ YQ JSe AVC SQP LY. Wrote the paper: AP CJ JSi.