All three <i>h</i>eIF2 cDNAs can replace yeast eIF2 in a triple deletion strain.

<p>A. Growth of yeast strains GP6124 (<i>y</i>eIF2), GP6461 (<i>h</i>eIF2 #1), GP6462 (<i>h</i>eIF2 #2) on glucose containing YPD medium (represses <i>h</i>eIF2 expression; top) and galactose YPGal medium (bottom; <i>h</i>eIF2 expression inducing conditions). B. Western blots of cell extracts from the same strains grown in YPGal medium.