FIG. 5.

CLB2 5′-UTR. Both DNA strands are shown, with the transcribed RNA above. The major transcriptional initiation sites are at positions 6 and 39. The translational initiation site is at position 400 in this figure. Sites of both in vitro cleavage by RNase MRP and mapped in vivo ends are indicated. Numbering of cleavage sites corresponds to the positions in Fig. 4. O-CLB2-10 and O-CLB2-12 are the two major oligonucleotides used in primer extension reactions.