Effect of different positively charged amino acids, carboxyl-terminally of the signal peptidase cleavage site, on the translocation kinetics of a precursor protein in Escherichia coli K-12 Struyve, M.; Bosch, D.; Visser, J.; Tommassen, J. FEMS (Federation of European Microbiological Societies) Microbiology Letters 109(2-3): 173-178 1993 https://eurekamag.com/research/008/529/008529289.php