Correction to: Nature Immunology https://doi.org/10.1038/s41590-019-0578-8, published online 20 January 2020.

In the supplementary information originally posted for this article, Supplementary Fig. 1 included only a truncated form of the MC.7.G5 TCR chains used to express soluble protein in bacteria (in panel b). This sequence includes a truncated constant domain that contains some mutations from the native sequence. This is made clear in the updated Supplementary Fig. 1, and another panel has been added at the bottom of the figure that shows the protein sequence with the leader and full-length natural constant regions, including the transmembrane domain. It is recommended that researchers wishing to make versions of this TCR refer to the sequence deposited at GenBank (MN782533.2) and include a constant domain that suits their intended purpose.