Analysis and mapping of a 3′ coterminal transcription unit derived from human cytomegalovirus open reading frames UL30–UL32

Background It has been predicted that the UL31 gene originates from the positive strand of the human cytomegalovirus (HCMV) genome, whereas the UL30 and UL32 genes originate from the complementary strand. Except for the UL32 gene, the transcription of this gene region has not been investigated extensively.