Fig. 5From: A nanobody:GFP bacterial platform that enables functional enzyme display and easy quantification of display capacityEvaluation of a signal sequence library on display levels of nanobody-fused chitinase (ChiA-NB-C-IgAP). a The ChiA-NB-C-IgAP fusion was cloned into a set of nine vectors containing different signal peptides for directing the polypeptide to the periplasm. Fluorescence values were measured in a plate reader. Significant variation among the different peptides was observed, with gIII showing the highest signal. Values are averages of biological triplicates, bars standard error. b Comparison of gIII and pelB signal peptides in the pK backbone. Values are averages of four biological replicates and bars show the standard errorBack to article page