Correction to: Nature https://doi.org/10.1038/s41586-019-1487-6Published online 28 August 2019.

In this Article, Supplementary Data file 3, containing the sequence for sLP–mCherry, was missing. This file has now been added to the original Article, and a citation has been included at the end of the first sentence of the ‘Labelling system’ section of the Methods.

In addition, in the ‘Data availability’ section, the Gene Expression Omnibus accession number for the single-cell RNA-sequencing datasets was incorrectly listed as ‘GEO13150’ instead of ‘GSE131508’, and the link for the Proteomics Identifications Database accession ‘PXD010597’ was incorrect. These errors have been corrected in the original Article online.