Ran-GTP is bound by β1-861,
β1-357, β1-457, and β288-457,
but not by β1-288 and β348-861. Equal
amounts of the fusion proteins GST-β1-861 (lane 1),
GST-β1-288 (lane 2), GST-β1-353 (lane 3),
GST-β1-457 (lane 4), GST-β348-861 (lane 5),
and inclusion bodies containing GST-β288-457 (lane 6)
were separated by SDS-PAGE and subjected to a
Ran-[α-32P]GTP ligand blot according to Coutavas
et al. (32). Labeled proteins were visualized by
autoradiography.