Department of Biochemistry and Biophysics, Center for Biomembrane Research, Stockholm University, Sweden, USA. lukas.kall@cbr.su.se|Department of Biochemistry and Biophysics, Center for Biomembrane Research, Stockholm University, Sweden, USA. lukas.kall@cbr.su.se|Department of Biochemistry and Biophysics, Center for Biomembrane Research, Stockholm University, Sweden, USA. lukas.kall@cbr.su.se