Additional file 2 of Clinical trial reporting performance of thirty UK universities on ClinicalTrials.gov—evaluation of a new tracking tool for the US clinical trial registry
Xrn1 knock out A549 cells were infected with WT A/Puerto Rico/8/1984 (H1N1) ("PR8"), or PA-X deficient PR8-PA(∆X) viruses, or mock infected for 16 hours before RNA extraction. 5’RACE was then performe