In this Article, the LIV-BP sensors used were site-specifically labelled with self-healing LD555P and LD655 organic fluorophores, not LD550 and LD650 as indicated. Also, we site-specifically labelled LIV-BP mutant D181C, not E181C. The sentence “The rate of single-turnover transport decreased by nearly an order of magnitude when the external pH was increased from 6 to 8 (Fig. 3c)” should read “The rate of single-turnover transport decreased by nearly an order of magnitude when the external pH was decreased from 8 to 6 (Fig. 3c)”. These errors have no effect on the results presented or the interpretations and conclusions made. These errors have been corrected online.
. Author manuscript; available in PMC: 2021 Jul 12.
Published in final edited form as: Nature. 2020 Mar;579(7797):E6. doi: 10.1038/s41586-020-2029-y