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Quantification of 3-NT-modified proteins level induced by 10 or 80 ppm gNO2. Results are displayed as the LOG increase, i.e., the base 10 logarithm of the ratio between the 3-NT concentration induced by gNO2 and that induced by air. Error bars show standard error of the mean of independent treatments (n ≥ 3). Statistical significance was calculated by a ratio paired t-test. (∗) for P < 0.05, (∗∗) for P < 0.01, and (∗∗∗) for P < 0.001.
