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. Author manuscript; available in PMC: 2015 Sep 17.
Published in final edited form as: Biochemistry. 2015 Sep 2;54(36):5617–5631. doi: 10.1021/acs.biochem.5b00407

Figure 5.

Figure 5

Protein fluorescence changes associated with reaction of ALA with XLPP variants indicate an increase in the rate constant of product release (corresponding to the y-axis intercept as defined in Equation 3). Observed reaction rates for (A) wild-type hALAS2 (10 pM), (B) delAT (10 pM), and (C) delAGTG (10 pM) with ALA were determined by fitting the data to Equation 3.