1 University of Ljubljana, Medical Faculty, Institute of Biochemistry and Molecular Genetics, Vrazov trg 2, 1000Ljubljana, Slovenia, [email protected].
2 University of Stockholm, Department of Biochemistry and Biophysics, Svante Arrhenius väg 16, 106 91 Stockholm, Sweden, [email protected], and Institute of Technology, University of Tartu, Nooruse 1, Tartu, Estonia, 50411.