1. Stellenbosch University; Department of Biochemistry, Private Bag X1, Matieland 7602; South Africa
2. Vrije Universiteit Amsterdam; Department of Molecular Cell Physiology; De Boelelaan 1085, 1081 HV Amsterdam The Netherlands
3. University of Groningen, University Medical Center Groningen, Center for Liver, Digestive and Metabolic Diseases, Systems Biology Centre for Energy Metabolism and Ageing; Department of Pediatrics; Antonius Deusinglaan 1, 9713AV Groningen The Netherlands
4. Vrije Universiteit Amsterdam; Department of Systems Bioinformatics; De Boelelaan 1085 1081 HV Amsterdam, The Netherlands