FIGURE 3.
SmgGDS preferentially forms a high affinity complex with nucleotide-depleted RhoA possessing a polybasic region. SmgGDS was incubated on ice for 30 min with a 2-fold molar excess of RhoA loaded with GDP (A), GTPγS (B), or in the presence of EDTA (C), separated over size-exclusion chromatography, and fractions were analyzed via SDS-PAGE.