Fig. 7.
Inhibition of splicing in HeLa cells does not result in NPG formation. Inhibition of splicing in HeLa cells by Spliceostatin A (100 ng/ml for 5 hours using a 100 µg/ml stock in methanol) (A) or a morpholino antisense to the U2 snRNA (B). Methanol (0.1%) or a morpholino sense to T. brucei β-tubulin served as controls. Rck (p54) and SC35 proteins were detected by immunofluorescence, using anti-rck/p54 (Bethyl Laboratories) or anti-SC35 (Sigma) antibodies.