Figure 8.

Effects of deletions and additions between the frameshift site and the stem-loop structure on the level of frameshifting. (A) Effect of deletions and additions in spacer 2 of dnaX. The SD sequence is present in the constructs. For reference, the dnaX WT mRNA spacing are indicated with an arrow. The horizontal dashed lines labeled SL del indicate the amount of frameshifting in constructs with the 3′ structure deleted. (B) Same as panel A, except that the SD sequence was deleted from the constructs.