Correction to: Nature Cell Biology https://doi.org/10.1038/s41556-017-0022-y, published online 22 January 2018

In the version of the article initially published, the right panel of Fig. 1a was a duplicate of the right panel in Fig. 1c. The revised panel can be seen below as Fig. 1.

Fig. 1
figure 1

Revised Fig. 1a.