β-galactosidase activity assay in BTH101E. colicells expressing T18 and T25 fusions to S. oneidensis flagellins, Maf-2 and Maf-2-GlfM. Unfused Maf-2 and Maf-2-GlfM were included as negative controls. For each combination, β-galactosidase activity was measured from a culture with five pooled E. coli clones grown overnight in LB containing antibiotic and IPTG.
