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. 2017 Sep 20;8:125. doi: 10.3389/fgene.2017.00125

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Copyright © 2017 de Farias, dos Santos Junior, Rêgo and José.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Structural alignments between the models generated by translation of proto-tRNA concatamers and the modern RdRp with the smaller RMSD value. In green the finger domain, in blue the palm domain, in yellow the thumb domain, and in red the structural model generated by translation of proto-tRNA concatamers. (A) The structural alignment between tRNA 2 and RdRp of Cardiovirus A, (B) the structural alignment between tRNA 3 and RNA Polymerase DSRNA Bacteriophage, and (C) the structural alignment between tRNA 3 and RNA polymerase Rotavirus. The structural aligned portion between each tRNA model and the modern protein is highlighted.