Regulation of cotranscriptional splicing by proteins interacting with the androgen receptor. Coregulators of the androgen receptor (AR) can affect splicing of target genes by direct interaction with AR and modulation of its activity. COBRA1, SAM68, and DDX5 appear to promote the transcriptional activity of AR but differentially act on splicing of variable exons (red box in the left side of the figure); PSF and its interacting protein p54 (right side of the figure) repress the transcriptional activity of AR, but their effect on splicing is currently unknown (see text for more details).
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