FIG. 3.

(A) Levels of pdiA (⧫), bipA (■), and tigA (▵) transcripts relative to actin mRNA at various time points after the addition of DTT. Values represent the average ± the SEM (bars) from triplicate experiments. (B) Western blots, probed for PDIA, of microsomal preparations from A. niger AB4.1 cultures at 0, 120, and 240 min after addition of DTT relative to untreated (water) controls. The arrow indicates the predicted size of PDIA. (C) Levels of pdiA (⧫), bipA (■), and tigA (▵) transcripts at various time points after the addition of the Ca²⁺ ionophore A23187. Values represent the average ± the SEM (bars) from triplicate experiments.