1. 1Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York.
2. 2Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina.
3. 3Department of Cell Biology and Physiology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina.
4. 4Genomics Innovation Hub, Biotechnology Resource Center, Cornell University, Ithaca, New York.
5. 5State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, P.R. China.