Vol. 218, No. 11, November 4, 2019. 10.1083/jcb.201905097.

The authors noticed an error in the scheme shown in Fig. 8 of their manuscript. Two arrows pointing from ARFRP1 to ARL1 through GEF were in the wrong direction. The mistake in this model figure has now been corrected; the revised Fig. 8 is shown below. All versions of the article have been corrected. This error appears only in PDF versions downloaded on or before October 10, 2019.

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