FIGURE 1.
Consensus sequences and distribution of singlet glycine riboswitches based on an initial alignment of 17 sequences. (A) Schematic diagrams showing the secondary structures and tertiary interactions of tandem, type-1 singlet, and type-2 singlet riboswitches. (B–D) Consensus sequences for tandem (B), type 1 singlet (C), and type 2 singlet riboswitches (D). The α and β A-minor motifs are conserved. (E) Distribution of genes controlled by the singlet riboswitches in the initial alignment.