Primary cultures of bovine adrenal glomerulosa cells were incubated for 30 minutes with or without 10 nM AngII in the presence or absence of 0.3% 1-butanol. Cells were harvested from duplicate wells and analyzed by western blotting for PKD phosphorylation at serine 910. Panel A shows a representative immunoblot, whereas Panel B illustrates the combined results of 3 separate experiments performed in duplicate. Immunoreactivity of pSer910 was normalized using actin and then expressed relative to the normalized control value. Panel C demonstrates the inhibition by 1-butanol of AngII-elicited aldosterone secretion in the collected supernatants. *p<0.05, **p<0.01, ***p<0.001 versus the control, †p<0.05, ††p<0.01 versus AngII alone by ANOVA followed by a Student-Newmann-Keuls post-hoc test. (Note that the lower band seen in some lanes of the representative western blot was not consistently observed and is likely non-specific.)