1 Department of Enzymology, Institute of Biochemistry of the Romanian Academy, Spl. Independentei 296, Bucharest, 060031, Romania.
2 Department for Neuro- and Sensory Physiology, University Medical Center Göttingen, and Center for Nanoscale Microscopy and Molecular Physiology of the Brain, Cluster of Excellence 171, Humboldtalle 23, Göttingen, 37073, Germany.
3 Max-Planck Research School Molecular Biology, Göttingen, 37077, Germany.
4 Department of Enzymology, Institute of Biochemistry of the Romanian Academy, Spl. Independentei 296, Bucharest, 060031, Romania. stefan.szedlacsek@biochim.ro.