FIG. 6.

Map of the K5 ORF. A putative CCAT box and the poly(A) signal are boxed and in boldface; note that they lack a distinguishable TATA box. The asterisk indicates the initiation site of the K5 transcript. The nucleotide sequence corresponding to the intron is boxed and shaded. The splice donor (GT…) and splice acceptor (…AG) sites are in boldface. The primers (K5F, K5F1, K5R1, K5R2, and K5R3) used for 3′ and 5′ RACE and RT-PCR are underlined. The arrows indicate the orientations of the primers.