FIGURE 8.

A speculative model of two distinct states of cells overexpressing the heterogeneous β-galactosidase. The white blocks stand for inclusion bodies. The gray area only appears in high enzyme activity cells (right in the equilibrium). The particulate-like materials spread in the cell represents loose form of heterogeneous β-galactosidase. We classify the right two types of cells as one state (LW, high activity and soluble protein-dominant) and the left type of cells as another state (DIB, low activity and only IB-containing).