Nat. Rev. Endocrinol. 11, 406–417 (2015); doi:10.1038/nrendo.2015.66 In Table 1 of the originally published article, the Km values for LAT1 and Lat2 were incorrectly labelled and referenced. The Km values for LAT1 shown are for human and not mouse as originally stated. Lat2 was originally labelled as human.