Fig. 3

Sequence and secondary structure models for several candidate riboswitch classes identified in this study. a-d Four candidate riboswitch classes present in the HIMB5 genome. e A candidate riboswitch class present in the genome of T. lienii. f A candidate riboswitch class present in the genome of B. cicadellinicola. These consensus models are created by comparing all unique sequence representatives for each motif that were uncovered by homology searches of RefSeq 76 and certain metagenomic databases. See the text for details regarding each of these motifs and for hypotheses regarding their biological functions. Note that another riboswitch candidate, thiS, identified in the genome of C. novyi is presented in Fig. 4a