Figure legend:Luciferase activity of HEK293T cells after transfection with Batf mRNA 3′ UTR firefly luciferase reporter, together with control (mock), wild-type or REGNASE-1(D141N)-expressing plasmid (n = 3). Signals were normalized to a second reporter, Renilla luciferase, that was expressed independently on the same plasmid. From Wei, J., et al. (2019).