1. University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW, U.K.
2. QingDao
Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, China
3. X-ray
Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States