Correction to the Supporting Information (SI)
The authors note that Figs. S3D and S4B have been revised to include dividing lines between lanes to show where extraneous data has been removed. Fig. S5A, first panel, was identical to Fig. S4A, and has been replaced by data obtained in a duplicate experiment. These changes do not affect the data presented nor the conclusions of the article. The changes were made to comply with the PNAS policy that requires dividing lines whenever entire nonessential lanes have been removed from a single original gel.
Below is a link to the corrected SI.
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