| 摘要 |
A hybrid promoter for controlling exogenous gene transcription is constructed by insertion of a UASG into a GPD portable promoter. The resulting hybrid promoter is placed upstream of an exogenous gene in a hybrid yeast-bacterial plasmid, which is used to transform yeast cells. Due to the regulation imparted to the GPD promoter by the UASG, transcription of the exogenous gene, and hence production of the exogenous gene product, may be regulated by controlling the composition of the carbon source in the yeast culture medium. Specifically, glucose is used to repress transcription and galactose is used to induce transcription.
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