Deletion of the AP-1 β subunit gene in
combination with gga2Δ strongly affects α-factor
maturation. Wild-type (WT, SEY6210; lane 1), apl2Δ
gga2Δ (GPY2420–3C; lane 2), apl1Δ
gga2Δ (GPY2422–9D; lane 3), apl6Δ
gga2Δ (GPY2425–29C; lane 4), and
apl4Δ gga2Δ (GPY2426–38C; lane 5)
cells were processed and quantified as described in the legend to
Figure 1.