3ZIU:
reference: Leucyl-tRNA synthetase editing domain functions as a molecular rheostat to control codon ambiguity in Mycoplasma pathogens., Li L, Palencia A, Lukk T, Li Z, Luthey-Schulten ZA, Cusack S, Martinis SA, Boniecki MT, Proc Natl Acad Sci U S A. 2013 Mar 5;110(10):3817-22. doi:, 10.1073/pnas.1218374110. Epub 2013 Feb 19. PMID: 23431144

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