Fig. 7From: Enhanced trypsin thermostability in Pichia pastoris through truncating the flexible regionFluorescence spectra of WT and variants (D3, D5, D7, D9, and D11). a Intrinsic fluorescence spectra of WT and variants. The fluorescence emission spectra were monitored at 300–400 nm. b Surface hydrophobicity of WT and variants. The fluorescence emission spectra were recorded between 400 and 600 nmBack to article page