European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.|European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.|European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.|European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.|European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.