1. College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, People’s Republic of China
2. State Key Laboratory of Microbial Technology, Shandong University, Qingdao, People’s Republic of China
3. CarbExplore Research BV, Groningen, The Netherlands
4. Biomolecular X-ray Crystallography, University of Groningen, Groningen, The Netherlands