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. 2021 Aug 13;12:4910. doi: 10.1038/s41467-021-24879-y

Fig. 3. The length of poly-pyrimidine tracts (PPTs) determine the SPF45 dependency of splicing.

Fig. 3

Original HNRNH1 and AdML pre-mRNAs and chimeric HNRNH1 pre-mRNAs are schematically shown (red color indicates AdML derived sequences). These pre-mRNAs were expressed from mini genes in HeLa cells and their splicing was assayed by RT-PCR. PAGE images and quantifications of RT-PCR are shown. Means ± SEM are given for three independent experiments and two-tailed Student t-test values were calculated (p = 0.0027 for Control siRNA vs SPF45 siRNA in HNRNPH1 intron, p = 0.9394 for Control vs SPF45 siRNA in AdML intron, p = 0.7548 for Control siRNA vs SPF45 siRNA in HNRNPH1 intron/AdML PPT25, p = 0.1961 for Control siRNA vs SPF45 siRNA in HNRNPH1 intron/AdML PPT25mt, p = 0.0011 for Control siRNA vs SPF45 siRNA in HNRNPH1 intron/AdML PPT13, p = 0.0004 for Control siRNA vs SPF45 siRNA in HNRNPH1 intron/AdML 5′mt. **P < 0.01, ***P < 0.001, n.s.P > 0.05. Source data of the above panels are provided as a Source Data file.