Vol. 217, No. 3, March 5, 2018. 10.1083/jcb.201703206.

The first version of this article published online included errors in Figure 4 that occurred during production. The graph in Fig. 4 H was inadvertently duplicated in Fig. 4 D.

Both the HTML and PDF versions of the article have been corrected. This error appears only in PDF versions downloaded on or before January 22, 2018. Rockefeller University Press apologizes for this regrettable error.

This article is available under a Creative Commons License (Attribution 4.0 International, as described at https://creativecommons.org/licenses/by/4.0/).