Correction to: Nature Structural & Molecular Biology https://doi.org/10.1038/s41594-024-01335-1, published online 19 June 2024.

In the version of the article initially published, the text “A portion of this research was supported by NIH grant no. R24GM154185 and performed at the Pacific Northwest Center for Cryo-EM (PNCC) with assistance from Marcelo De Farias and Janette Myers” was omitted from the Acknowledgements and has now been added to the HTML and PDF versions of the article.