Figure 4.
Multiple domains of RAE1 are necessary but not sufficient for interaction with NUP98. (A) Schematic representation of HA1-RAE1 deletion mutants. The four WD-repeat motifs are indicated as gray boxes. All mutants expressed an NH2-terminal HA1 tag. (B) Western blot analysis of proteins precipitated with 12CA5 antibody from lysates of HtTA cells transiently transfected with HA1-RAE1 or various deletion mutants. Precipitated proteins were visualized with 12CA5 (top) and anti–NUP98 antibodies (bottom). The HA1-RAE1 mutants used are indicated above the lanes. Molecular weight standards are indicated to the left. Results shown are representative for three independent experiments. (C–G) Confocal images detailing the subcellular distribution HA1-RAE1 deletion mutants moderately expressed in HtTA cells and stained with 12CA5 antibody. Note that the ability to coprecipitate NUP98 correlates with prominent NE staining.

