Figure 6.
Expression of the NH2-terminal half of p180 induces extensive, closely spaced rough membranes. Cells were transfected with pYEX-BX containing the ΔCT version of p180. Transformants were selected and grown in Cu2+-containing medium for 5 h before preparation for electron microscopy. Visible are closely opposed rough membranes with a lower density of ribosomes in membrane-free zones (compared with cells shown in Fig. 4). Bars, 200 nm.