Extended Data Fig. 7: Bio-layer interferometry (BLI) binding profiles of WT FluPol and mutants to 3′ vRNA.

a-c. The binding affinities between the WT FluPol (a), mutants M507A (b), E508A (c) and 3′ vRNA at indicated concentrations were determined by BLI experiment, respectively. d. The values of KD, KD error and Full R2 were shown in the table. The data shown are representative of two independent experiments with similar results.