Abstract
Some aminoacyl-tRNA synthetases have elongated by fusing two very similar sequences.
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Koch, G., Boulanger, Y. & Hartley, B. Repeating sequences in aminoacyl-tRNA synthetases. Nature 249, 316–320 (1974). https://doi.org/10.1038/249316a0
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DOI: https://doi.org/10.1038/249316a0
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