Correction to: Nature https://doi.org/10.1038/nature25015, published online 16 November 2017.

In the gel source data for Extended Data Fig. 2b (page 7 of Supplementary Fig. 1 of the Letter) of this Letter, the label “IB: Cyclin A” should read “IB: Cyclin E”. Figure 1 of this Amendment shows the original, correct Extended Data Fig. 2b and its corrected Source Data. The original Letter has not been corrected.

Fig. 1
figure 1

This is the original, correct Extended Data Fig. 2b and its corrected Source Data.