Antibody specificity against PLDα, PLDβ, and
PLDγ. Purified GST-PLDα, GST-PLDβ, and GST-PLDγ (0.1 μg
per lane) were separated by 8% SDS-PAGE. The blots were incubated with
anti-PLDα, anti-PLDβ, or anti-PLDγ polyclonal antibodies (1:1000
dilution) and then the second antibody. PLD-antibody complexes were
made visible by alkaline phosphatase.