KLRK1 and cytomegalovirus infection: Human cytomegalovirus (HCMV) infection induced ULBP1, ULBP2 and ULBP3, but HCMV glycoprotein UL16 inhibited NKG2D‐mediated recognition by its binding with ULBP1 and ULBP2 in human foreskin fibroblasts 12.