EMBL European Bioinformatics Institute, Wellcome Trust Genome Campus, CB10 1SD, Cambridge, Hinxton, UK.|EMBL European Bioinformatics Institute, Wellcome Trust Genome Campus, CB10 1SD, Cambridge, Hinxton, UK.|The Babraham Institute, Babraham Campus, CB22 3AT, Cambridge, UK.|EMBL European Bioinformatics Institute, Wellcome Trust Genome Campus, CB10 1SD, Cambridge, Hinxton, UK.|EMBL European Bioinformatics Institute, Wellcome Trust Genome Campus, CB10 1SD, Cambridge, Hinxton, UK.|EMBL European Bioinformatics Institute, Wellcome Trust Genome Campus, CB10 1SD, Cambridge, Hinxton, UK.|EMBL European Bioinformatics Institute, Wellcome Trust Genome Campus, CB10 1SD, Cambridge, Hinxton, UK.|Department of Bioinformatics, BiGCaT, Maastricht University, Maastricht, 6229, The Netherlands.|EMBL European Bioinformatics Institute, Wellcome Trust Genome Campus, CB10 1SD, Cambridge, Hinxton, UK.|California Institute of Technology, Division of Biology and Biological Engineering, Pasadena, 91125, CA, USA.|California Institute of Technology, Division of Biology and Biological Engineering, Pasadena, 91125, CA, USA.|Department of Bioinformatics, BiGCaT, Maastricht University, Maastricht, 6229, The Netherlands.|EMBL European Bioinformatics Institute, Wellcome Trust Genome Campus, CB10 1SD, Cambridge, Hinxton, UK. lenov@babraham.ac.uk.