Bioinformatics Center, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China. pljia@sibs.ac.cn|Bioinformatics Center, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China. pljia@sibs.ac.cn|Bioinformatics Center, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China. pljia@sibs.ac.cn|Bioinformatics Center, Shanghai Institutes for Biological Sciences, The Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China. pljia@sibs.ac.cn