Table 1.

Membrane motility assayed in the presence of specific probes for trimeric G poteins

Probe	Level of motility
Cholera toxin	Equal to control
Pertussis toxin	Equal to control
Gα0-GTPγS	Equal to control
Gαi3-GTPγS	Equal to control
Gαs-GTPγS	Equal to control
βγ subunits	Equal to control