Correction to: Nature Chemical Biology https://doi.org/10.1038/s41589-019-0424-1, published online 9 December 2019

In the version of the article originally published, two colleagues were omitted from the Acknowledgements section. The section should read “We thank H. Großhans, T. S. Miki, D. Porter, R. Tiedt, J. Baryza and G. Rice for helpful discussions through the course of this research study. This work was supported by the Novartis Research Foundation (J.A.C.), the SNF-NCCR RNA & Disease network (J.A.C.) and the Medical Research Council (MRC) grant no. MC_U105192715 (L.A.P.)”. The error has been corrected in the HTML and PDF versions of the paper.