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. 2016 Aug 25;6:32208. doi: 10.1038/srep32208

Figure 4. Determination of enzyme activity of AroK and AroL in vitro.

Figure 4

(a) The enzyme activity of AroK; (b) The enzyme activity of AroL. The activities of the purified shikimate kinase was determined by coupling the release of ADP from the shikimate kinase-catalyzed reaction to the oxidation of NADH using pyruvate kinase and lactate dehydrogenase as coupling enzymes. Shikimate-dependent oxidation of NADH was monitored at A340 (ε = 6,200 M−1cm−1) at 25 °C. The data are from three experimental replicates.