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O'Donoghue, P; Luthey-Schulten, Z «On the evolution of structure in aminoacyl-tRNA synthetases». Microbiology and Molecular Biology Reviews, 67, 4, 2003, pàg. 550–73. DOI: 10.1128/MMBR.67.4.550-573.2003. PMC: 309052. PMID: 14665676.
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