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. Author manuscript; available in PMC: 2015 Dec 18.
Published in final edited form as: Chem Biol. 2014 Dec 18;21(12):1700–1706. doi: 10.1016/j.chembiol.2014.10.019

Figure 3. Backbone Ester Mutagenesis.

Figure 3

Incorporation of phenyllactic acid at Phe259 introduces a backbone ester mutation, converting a strong hydrogen bond (solid line) to a weaker hydrogen bond (dashed line).