FIG. 9.

Schematic of UXP and DBP transcripts and proteins. The Ad5 genomic m.u. are shown at the bottom. The leftward pointing arrows near the bottom are the spliced mRNAs for UXP and DBP; the solid parts are exons and dashed parts are introns. The bars above the arrows depict the UXP (□) and DBP (□) proteins. The UXP is expressed at late stages of infection. There are three exons in the UXP mRNA; the coding sequences for UXP protein are at Ad5 nucleotides 31031 to 30868, 24744 to 24668, and 24041 to 23629. The DBP early mRNA is expressed initially in early stages of infection, and the DBP late mRNA is expressed in late stages. The genes encoding DBP (nucleotides 22443 to 24032), the 100K protein (nucleotides 24061 to 26484), and fiber (nucleotides 31042 to 32787) are shown at the top; the arrows indicate the direction of transcription. The genes between the 100K protein and fiber genes are not shown. There are known promoters in the DNA coding sequences near the 5′ ends of the early and late DBP mRNAs, and there is a presumed promoter near the 5′ end of the UXP mRNA.