Publisher Correction: Directed evolution improves the catalytic efficiency of TEV protease

Correction to Nature Methods https://doi.org/10.1038/s41592-019-0665-7, published online 9 December 2019

In the version of this article originally published, there were errors in Figs. 3 and 4. In Fig. 3a, there was an extra delta symbol placed between the words ‘TEV’ and ‘protease’ in the label ‘TEV protease library’. In Fig. 3f, the unit for k_cat/K_m was missing from the top rightmost column of the chart; it is ‘(s mM)^–1’. In Fig. 4g, the labels in parentheses for the second and fourth ‘GFP’ rows should be ‘SPARK expression’ instead of ‘FLARE expression’. The errors have been corrected in the HTML and PDF versions of the paper.