Additional file 4.

Measurement of apparent Kmof CYP98A22. Reaction rates versus different concentrations of p-coumaroyl shikimate (4μM-50μM) (A) and of p-coumaroyl quinate(1μM-30 μM) (B). Apparent Km values were measured by fitting the data to the Michaelis-Menten equation using the software SigmaPLOT 12.0.

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Karamat et al. BMC Plant Biology 2012 12:152   doi:10.1186/1471-2229-12-152