Figure 1. The specific activity of At ATA-WT in different types and concentrations of organic solvents. The reaction conditions: 0.5 mg/mL purified enzyme, 5 mM 1-(R )-PEA ,5 mM 1-acetylnaphthalene, 0.1 mM PLP and 5~50% (v/v ) organic solvent. The reaction mixtures were shaken at 30 °C for 30 min.