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. 2012 May 4;40(14):6898–6907. doi: 10.1093/nar/gks352

Figure 1.

Figure 1.

Updated consensus sequence and secondary structure model for OLE RNAs based on approximately 200 genomic and metagenomic representatives. Co-variation was calculated as described previously (19), and MI content of all possible nucleotide pairs was computed using published methods (5). P-values represent the probability of the given MI score occurring by chance in simulated neutral-evolution populations. A P-value cutoff of 10−4 is consistent with many base pairs predicted in previous models, and with two additional stems (P14a and P15). Potential tertiary interactions (Inset) are also evident. A P-value cutoff of 10−3 reveals possible base-pairing interactions (including P4a) that can form in at least 80% of the representatives (arrowhead).