1. Department of Biochemistry and Biophysics, Stockholm University, Svante Arrhenius väg 16B, SE-106 91 Stockholm, Sweden
2. Institute of Environmental Medicine, Karolinska Institutet SE-171 77 Sweden
3. Monash Molecular Crystallisation Facility (MMCF), Monash University, VIC 3800, Australia
4. Lipid laboratory, Department of Medicine, Karolinska Institutet, SE-141 57 Huddinge, Sweden