Correction to: Protein Cell 2018, 9(7):629–639 https://doi.org/10.1007/s13238-017-0465-8

In the original publication the PDB numbers were not cited.

The correct version is provided in this correction article.

Three-Dimensional ctyo-EM density maps and coordinates of YnaI has been deposited in the Electron Microscopy Data Bank under the accession number EMD-6805 and deposited in the RCSB Protein Data Bank under the accession code 5Y4O.