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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: Biochim Biophys Acta. 2014 Mar 12;1844(6):1059–1070. doi: 10.1016/j.bbapap.2014.03.002

Figure 5.

Figure 5

(A) The recognition of the substrate α-amine at the active site of PylRS. Side chains of residues 300–302 are not shown for a clear view of the hydrogen bond network of α-amine. (B) The recognition of the substrate α-amine at the active site of T. thermophilus PheRS.