Division of Biomolecular Technology, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden.|Division of Biomolecular Technology, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden.|Division of Biomolecular Technology, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden.|MRC Human Genetics Unit, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh, United Kingdom.|Division of Biomolecular Technology, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden.