At 48 hours post infection, the expression of all eight EBV genes was detected in BJAB cells, that of four genes (LMP2, EBNA1, EBER1, BZLF1) was detected in THP-1 cells, and that of two genes (EBER1 and BZLF1) was detected in Jurkat cells (Fig 1B). Here, PSMB9 is linked to infection.