Fig. 6: ZNF423 maintaines the stable expression of BCAT1 by binding the AU-rich elements (AREs) of the 3′-UTR of BCAT1 mRNA in hypoxic PASMCs.

a The binding sites for ZNF423 in the 3′-UTR of BCAT1 mRNA. b The correlation between ZNF423 and BCAT1 mRNA was detected by real-time PCR after RNA immunoprecipitation (RIP) (n = 3). c Reporter constructs containing luciferase, and the 3′-UTR of BCAT1 mRNA and mutated 3ʹ-UTR of BCAT1 mRNA were used to estimate the activity of various luciferase reporter genes (n = 3). Nor normoxia, Hyp hypoxia, Con con083 control vector, 3′-UTR 3′-UTR luciferase reporter plasmid, 3′-UTR mut 3′-UTR ARE mutant luciferase reporter plasmid. Statistical analysis was performed with two-way ANOVA. All values are presented as the mean ± SEM. **p < 0.01; ***p < 0.001.