Correction to: Nature Structural & Molecular Biology https://doi.org/10.1038/s41594-023-00950-8. Published online 20 April 2023.

In the version of this article initially published, in Figure 4a, the top panel (PF3) was inadvertently duplicated in the bottom panel (PF3 WMS). This caused the wrong data to be displayed for the PF3 WMS analysis. The error has been corrected in the HTML and PDF versions of the article.