Article
Aberrant processing of wild-type and mutant bovine pancreatic trypsin inhibitor secreted by Aspergillus niger.
Journal of biotechnology - 12 Aug 1998
MacKenzie D A, Kraunsoe J A, Chesshyre J A, Lowe G, Komiyama T, Fuller R S, Archer D B
Abstract excerpt
Bovine pancreatic trypsin inhibitor (BPTI) was secreted by Aspergillus niger at yields of up to 23 mg l-1 using a protein fusion strategy. BPTI was linked to part of the fungal glucoamylase protein (GAM) with a dibasic amino acid (KEX2) processing site at the fusion junction. Electrospray ionisation mass spectrometry and N-terminal protein sequencing revealed that, although biologically active in vitro, the...
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