Figure 2. Electrophoresis patterns on gels stained for 2A, phosphoglucomutase; 2B, phosphoglucose isomerase; 2C, isocitrate dehydrogenase; or 2D, Malic enzyme. All materials were from the Authentikit® system. The --- mark shows the location were the individual cell extracts (from the cell line indicated at the bottom of the figure) were applied to the gels and the arrow heads < indicate the location of some light bands that were seen on the gels but which may not be apparent in the photo. Samples were electrophoresed 25 min prior to staining for the indicated substrate.