1. Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei 112, Taiwan
2. Institute of Biomedical Informatics, National Yang-Ming University, Taipei 112, Taiwan
3. Institut für Physikalische und Theoretische Chemie, TU-München, Lichtenbergstr. 4, 85748 Garching, Germany
4. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan