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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

Table 1.

Observed rates of quinonoid intermediate formation and decay under the single turnover reaction conditions described in Figure 3

Parameter Wild-type hALA2
(s−1)
DelAT
(s−1)
DelAGTG
(s−1)
Q548X
(s−1)
Q f 6.6 ± 0.2 9.8 ± 0.4 11.1 ± 0.5 14.3 ± 0.6
Q d 0.70 ± 0.02 1.37 ± 0.04 1.97 ± 0.05 1.93 ± 0.07