Correction to: Nature https://doi.org/10.1038/s41586-020-2888-2Published online 04 November 2020

In Fig. 4 of this Article, the same graph appeared twice (under both ‘Gα13’ and ‘β-arrestin-2’). The correct figures were present during the review process and this error does not affect the results or conclusions. Note that the numerical values calculated from the curves in Fig. 4 that appear in Extended Data Fig. 6f (pEC50 and Emax values for lodoxamide) were calculated from the correct curves for Gα13 and β-arrestin-2. The ‘β-arrestin-2’ graph of the original Article has been corrected online.