Protein lysates were collected from A549 and HEKT293T ishXrn1 cells treated with doxycycline for 3-4 days or left untreated. They were then probed with antibodies against Xrn1 or beta-tubulin as a
Protein lysates of Xrn1 knock out (ko) A549 cells infected with WT PR8 or PR8-PA(∆X), or mock infected, were probed with antibodies against PR8 PA or beta-tubulin as a loading control.
