Fig. 3.

Identification of L-arginine consumption and citrulline accumulation in mycoplasma-contaminated HEK-293 cells

Schematic representation (a) of measuring the concentrations of L-arginine (b) and citrulline (c) in both cell media and lysates from mycoplasma-contaminated and mycoplasma-free HEK-293 cells. Data are expressed as mean±standard deviation (n=3). ^* P<0.05, ^** P<0.01, vs. mycoplasma-free cells