Correction to: Nature Chemical Biology https://doi.org/10.1038/s41589-020-00693-3, published online 16 November 2020

In the version of this Review Article originally published, there was an error in the description of a cited reference in the “Lipid-gated K+ channels” section of the text. In the sentence “Although crystal structures suggest that both PIP2 and G-protein binding (the latter mimicked by the R201A mutation) are required to open the inner helix gate (PDB: 3SYQ; 3.5 Å resolution)29, recent cryo-EM structures solved in lipid nanodiscs suggest that PIP2 binding alone translates the cytoplasmic domain up toward the TM pore domain, as in Kir2.2 (ref. 30),” ‘lipid nanodiscs’ should be changed to ‘detergent’ to read “…recent cryo-EM structures solved in detergent…”. The error has been corrected.