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. 2010 Aug 16;38(22):8061–8071. doi: 10.1093/nar/gkq717

Figure 5.

Figure 5.

AUF1 p42 isoform selectively downregulates FGF9 mRNA expression. (A) Pull-down assay showing that p42AUF1 is the major isoform pulled down by biotin-labeled FGF9 ARE probe. Arrowhead indicates the position of each AUF1 isoform. Note that the mutant is markedly weaker than the wild type. Input and probe only indicate positive and negative controls. (B) Western blots using anti-Myc antibody showing the expression of indicated recombinant AUF1 proteins. HEK293 and pcDNA3.1 refer to cells without transfection and cells transfected with empty vector, respectively. (C) Endogenous FGF9 mRNA levels relative to control (pcDNA3.1) in cells overexpressing the AUF1 isoforms p37, p40, p42 and p45. **P < 0.01.