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. 2018 Jan;24(1):56–66. doi: 10.1261/rna.062893.117

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© 2018 McKenney et al.; Published by Cold Spring Harbor Laboratory Press for the RNA Society

This article is distributed exclusively by the RNA Society for the first 12 months after the full-issue publication date (see http://rnajournal.cshlp.org/site/misc/terms.xhtml). After 12 months, it is available under a Creative Commons License (Attribution-NonCommercial 4.0 International), as described at http://creativecommons.org/licenses/by-nc/4.0/.

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FIGURE 4. — TbTrm140 catalytic residues do not contribute to increased affinity of TbADAT2/3 for tRNA. (A) EMSA of TbTrm140 catalytic mutant (G124/G126A) to tRNA^Thr_CGU. Lane 1 is a no-enzyme control reaction. Lanes 2–6 show an increasing concentration of TbTrm140 catalytic mutant (0.04, 0.08, 0.16, 0.32, and 0.56 µM, respectively). (B) EMSA of TbADAT2/3 to tRNA^Thr_CGU in the presence of the TbTrm140 catalytic mutant. Lanes 1 and 2 show a no-enzyme control reaction and control reaction with no mutant TbTrm140 added, respectively. Lanes 3–7 show an increasing concentration of TbADAT2/3 (0.06, 0.12, 0.24, 0.48, and 0.7 µM, respectively). The bottom panels show the single-ligand binding isotherms used to calculate the individual K_dapp. Each graph represents at least 5 independent replicates.