Furthermore, only few CD56dimNKG2A+KIR− NK cells were CD57+ at the time point of diagnosis of IM and PTLD, yet, the frequency of CD57+CD56dimNKG2A+KIR− NK cells was significantly increased in IM patients at 12 months post-diagnosis (Figure 5E). Here, B3GAT1 is linked to post-transplant lymphoproliferative disease.