Correction: Corrigendum: Structure of EF-G–ribosome complex in a pretranslocation state

Nat. Struct. Mol. Biol. 20, 1077–1084 (2013); published online 4 August 2013; corrected after print 12 January 2015

In view of the differences between our findings reported in this study and in Tourigny et al. (Science 340, 1235490, 2013), we have rerefined the structure with Refmac (Murshudov, G.N. et al., Acta Crystallogr. D Biol. Crystallogr. 67, 355–367, 2011). This resulted in better statistics and revealed that the structure contained tRNA^Phe in the P/E site, as in Tourigny et al., and not tRNA^fMet as we had originally interpreted. (Both tRNA^fMet and tRNA^Phe had been included for crystallization.) Thus, the structure reported here is essentially identical to that reported in Tourigny et al., and we thank D. S. Tourigny, G. Murshudov and V. Ramakrishnan for alerting us about this issue after they had rerefined our data with Refmac. We have updated the coordinates accordingly (PDB 4CR1) and made the following corrections: (i) on pages 1078 and page 1080, tRNA^fMet was changed to tRNA^Phe; (ii) on page 1081, including Figure 4b, A43 was changed to C43, and A43-U27 was changed to C43-G27; (iii) on page 1082, G42 was changed to C42. The text and Figure 4 have been updated to reflect the revised information as of 12 January 2015.