European Bioinformatics Institute, Cambridge, UK. chrish@ebi.ac.uk|European Bioinformatics Institute, Cambridge, UK. chrish@ebi.ac.uk|European Bioinformatics Institute, Cambridge, UK. chrish@ebi.ac.uk|European Bioinformatics Institute, Cambridge, UK. chrish@ebi.ac.uk|European Bioinformatics Institute, Cambridge, UK. chrish@ebi.ac.uk|European Bioinformatics Institute, Cambridge, UK. chrish@ebi.ac.uk|European Bioinformatics Institute, Cambridge, UK. chrish@ebi.ac.uk