1WQ4: Escherichia Coli Tyrosyl-Trna Synthetase Mutant Complexed Wi Tyrosine
reference: Structural basis of nonnatural amino acid recognition by an engineered aminoacyl-tRNA synthetase for genetic code expansion., Kobayashi T, Sakamoto K, Takimura T, Sekine R, Vincent K, Kamata K, Nishimura S, Yokoyama S, Proc Natl Acad Sci U S A 2005 Feb 1;102(5):1366-71. Epub 2005 Jan 25. PMID: 15671170

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