12% SDS-PAGEs of autoinduction expression of human apoAI using the modified recipe of C-750501 medium containing different concentrations of glycerol. The glycerol concentrations are indicated in the bottom of the figure. For 0.3, 0.4, 0.5, and 0.75% glycerol, Lane 1:36 h, Lane 2:38 h, Lane 3:40 h, and Lane 4:43 h. For 0.2% glycerol, Lane 1:27 h, Lane 2:30 h, Lane 3:33 h, and Lane 4:36 h. MK: molecular weight marker.