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CE and PCE activity assay. (A) Absorbance from the degradation of p-NPA substrate by CE with/without PMSF measured at 410 nm; (B) absorbance from the degradation of BTC substrate by PCE with/without PMSF measured at 415 nm; (C) enzymatic activity of CE with/without PMSF measured spectroscopically; and (D) enzymatic activity of PCE with/without PMSF measured spectroscopically. All data is reported as mean ± standard error (N = 3).
