Fig. 4
Comparison of signal peptide performance with respect to extracellular cutinase activities using B. subtilis pBSMuL3-SPLib-cutinase or C. glutamicum pXMJ19-SPLib-cutinase as expression host. Each data point represents one SP with its corresponding cutinase activity obtained from cutinase secretion in B. subtilis [16] or C. glutamicum (this study). Three marked SPs (Bpr, Pel, YwfM) with their corresponding extracellular cutinase activities in both secretion hosts are discussed in the text, cf. also Table 1. Both data series are normalized by their respective maximum value and error bars represent standard deviations (25% as reported for B. subtilis [16] or from two cutinase activity measurements for C. glutamicum in this study, respectively)