YWHAQ and cytomegalovirus infection: To determine if UL97 interaction with 14-3-3 proteins had a role during HCMV infection, we generated recombinant HCMVs with amino terminal HA epitope tags on either WT (rBAD-HA97) or S13A (rBAD-HA97-S13A) alleles of UL97 in the AD169 strain of virus.