An efficient cell-free translation system from Aspergillus nidulans and in vitro translocation of prepro-a-factor across Aspergillus microsomes

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Abstract
We describe the preparation of an in vitro translation system from heat shock-treated Aspergillus nidulans, capable of supporting efficient and faithful synthesis of proteins from natural and in vitro transcribed eukaryotic messages. In vitro synthesized prepro-α-factor was translocated across Aspergillus nidulans microsomal membranes in either the homologous A. nidulans or a yeast cell-free system. The translocated prepro-α-factor was protected from digestion by protease and glycosylated to higher MW forms.