CD3E and cytomegalovirus infection: The adaptive-like NK cells featured high expression of CD3E, LAG3, and IL-32 with no expression of FCER1G and TCRs, consistent with published scRNA-seq data (except for low expression of KLRC2/NKG2C, the canonical markers for adaptive NK cells after human cytomegalovirus (HCMV) infection) (Supplementary Fig. 5a, b)21,22.