Vol. 217, No. 8, August 6, 2018. 10.1083/jcb.201710132.

The top blot shown in Fig. S1 A was mistakenly inverted prior to publication. The corrected Fig. S1 is shown below. The text and figure legends were correct as originally described. This correction does not affect the conclusions of the paper.

The supplemental PDF has been corrected. These errors appear only in PDF versions downloaded on or before March 8, 2019.

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