European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.|European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.|European Molecular Biology Laboratory (EMBL), Cell Biology and Biophysics Unit, Heidelberg, Heidelberg, Germany.|European Molecular Biology Laboratory (EMBL), Cell Biology and Biophysics Unit, Heidelberg, Heidelberg, Germany.|European Molecular Biology Laboratory (EMBL), Cell Biology and Biophysics Unit, Heidelberg, Heidelberg, Germany.|European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.|European Molecular Biology Laboratory (EMBL), Cell Biology and Biophysics Unit, Heidelberg, Heidelberg, Germany.|European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.