P. pastoris pastoris promoters, and the use thereof to direct expression of proteins in yeast, preferably using a haploid mating strategy

Abstract

Novel promoters which are derived from P. pastoris pastoris which are inducible or repressible under specific growth conditions are provided. These promoters are useful for regulating the expression of a desired structural gene, e.g., a mammalian polypeptide. Particularly preferred is the use of these novel promoters to regulate gene expression in polyploidal yeast such as diploidal P. pastoris produced by mating or spheroplast fusion.

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