Figure 1.

Schematic of the terminator motif for which TransTermHP searches. The terminators consist of a short stem-loop hairpin followed by a thymine-rich region on their 3' side. For the results reported here, TransTermHP was restricted to find terminators for which each side of the stem is ≥ 4 nt, the length of the loop is ≥ 3 nt and ≤ 13 nt, and the total length of the stem-loop was ≤ 59 nt.