Figure 5

Dependence of GCN4 translation on ternary complex and Factor X levels. Percentage of ribosomes that reinitiate at GCN4 is computed for ternary complex levels ranging from the repressing condition to only 1% of the scanning rate (A, B). (A) Using Model 1, GCN4 reinitiation percentages were calculated for the normal Factor X levels (triangle) and 5-(diamond) and 10-fold reductions (square) in Factor X. (B) Model 2 (square) is parameterised and plotted on top of Model 1 (triangle).