Table 5.
Summary of the results of enzyme activity measurements performed in control fibroblast.
| Citrate synthase |
Complex IV |
Complex II |
||||
|---|---|---|---|---|---|---|
| Lowest control | Highest control | Lowest control | Highest control | Lowest control | Highest control | |
| Lab 1 | 93% | 109% | 91% | 112% | 93% | 108% |
| Lab 2 | 62% | 161% | 70% | 137% | 76% | 128% |
| Lab 3 | 44% | 177% | 56% | 145% | 22% | 220% |
| Lab 4 | 86% | 128% | 87% | 122% | 87% | 139% |
The results were obtained in the control cell lines included in this study (see Table 1). The enzyme activities were normalized for the average of each enzyme in the different labs. The lowest and highest control values give an impression of the range of enzyme activities in control fibroblasts measured in the participating labs.