1. School of Computer Science, University of Manchester, United Kingdom.
2. NERC Environmental Bioinformatics Centre, Oxford Centre for Ecology and Hydrology, Oxford, United Kingdom.
3. EMBL Outstation, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, United Kingdom.
4. National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland.
5. Center for Information Biology and DNA Data Bank of Japan, National Institute of Genetics, Research Organization of Information and Systems, Shizuoka, Japan.
6. Molecular Evolution and Bioinformatics Section, Oxford Centre for Ecology and Hydrology, Oxford, United Kingdom.