1. School of Marine Sciences, Ningbo University, Ningbo 315211, P.R. China
2. College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, P.R. China
3. Korean Bioinformation Center (KOBIC), Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea
4. Department of Nanobiotechnology and Bioinformatics, University of Sciences and Technology, Daejeon 305-350, Korea
5. Zhejiang Provincial Key Laboratory of Applied Enzymology, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, P.R. China