Correction to Nature Chemical Biology https://doi.org/10.1038/s41589-019-0386-3, published online 21 October 2019

In the version of this article originally published, some values for AncDHCH3 and BbDHCH in Fig. 1d and Supplementary Table 3 were incorrect. The original and corrected images of Fig. 1d are shown here. The errors have been corrected in the HTML and PDF versions of the paper and in the Supplementary Information file.

Fig. 1
figure 1

Original and Corrected.