1. Bioinformatics Institute Agency for Science, Technology and Research (A*STAR) 30 Biopolis Str. #07-01 Matrix Singapore 138671 Singapore
2. Korea Institute for Advanced Study School of Computational Sciences 85 Hoegiro Dongdaemun-gu, Seoul 02455 Republic of Korea
3. Delft University of Technology Department of Biotechnology Van der Maasweg 9 Delft 2629HZ The Netherlands
4. National University of Singapore Department of Biological Sciences 14 Science Drive 4 Singapore 117543 Singapore