Correction to: Nature Structural & Molecular Biologyhttps://doi.org/10.1038/s41594-024-01341-3, published online 25 June 2024. In the version of the article initially published, the sentence "We acknowledge the European Synchrotron Radiation Facility and the Deutsches Elektronen-Synchrotron for provision of synchrotron radiation facilities and we would like to thank the staff of the ESRF and EMBL Grenoble at beamline MASSIF-1, and DESY and EMBL Hamburg at beamline P13, respectively, for assistance and support” was missing from the Acknowledgements section and has now been added to the HTML and PDF versions of the article.