APMAP and cytomegalovirus infection: APMAP deficiency caused significantly lower HCMV infection in both epithelial and fibroblast cells (Figs 2 and 3 and S3 and S4 Figs) while over-expression of APMAP increased HCMV infection of less susceptible cells (Figs 4 and 5 and S5–S7 Figs), all in a pentamer non-specific manner.