Antagonistic properties of ASF/SF2 and SC35. GH3 cells were
transfected with 500 ng of either SC35 or ASF/SF2 expression vector and
increasing amounts (100, 250, 500, and 1000 ng) of the other expression
vector. Empty vectors were used to balance each transfection to an equal mass
of DNA. GH1 splicing was analyzed by RT-PCR and polyacrylamide gel
electrophoresis. The amounts of exon 3 skipped transcripts in each lane were
calculated as a percentage of all other transcripts within a single lane. The
data are presented as the averages of at least n = 3. The error
bars are S.E. A, wild-type GH1. B, A1338G mutant GH1.
C, A1338G+Δ6 mutant GH1.