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. 2009 Jul 13;37(18):e121. doi: 10.1093/nar/gkp587

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© 2009 The Author(s)

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Phylogenetic secondary structure and three predicted suboptimal structures of yeast tRNA^Phe. The lowest free energy structure has 95% of the base pairs predicted correctly. Base paired regions that are predicted correctly in the suboptimal structures are shaded. Nucleotides cleaved by RNase H after 1 or 2 h incubation are circled. D denotes dihydrouracil while Y denotes wybutosine.