Correction to: Nature Structural & Molecular Biology https://doi.org/10.1038/s41594-019-0193-2, published online 4 March 2019.

In the version of this article initially published, in Figure 5b, the condensate data in the top right panel duplicated those in the top left panel instead of displaying the quantification data for PGL-3 ± (MEG-3). The error has been corrected in the HTML and PDF versions of the article.