In addition to NCL, FBXO2, which is highly expressed in various human colorectal cancer cell lines, also specifically binds to the GTM-grafted Vγ4δ1-Fc fusion protein in BLI (Supplementary Data Fig. 9), suggesting a potential ectopic protein ligand for the Vδ1 TCR for which further validation is needed. Here, FBXO2 is linked to colorectal cancer.