Correction to: Nature Cell Biology https://doi.org/10.1038/ncb3499, published online 3 April 2017.

In the version of the article initially published, the upper left image in Fig. 6a was inadvertently duplicated from the lower left image of Fig. 6f. We have now corrected this error by replacing the upper left image of Fig. 6a with the appropriate image, as seen in Fig. 1. This error was limited to figure presentation and does not affect the results or the conclusions of the study.

Fig. 1
figure 1

Corrected Fig. 6a.