Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridgeshire, United Kingdom.|Department for Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden.|Department for Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden.|Organismal and Evolutionary Biology Research Programme, Department of Computer Science, Institute of Biotechnology, University of Helsinki, Helsinki, Finland.|Department for Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden.|Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridgeshire, United Kingdom.