Abstract
We describe the heterologous expression of monellin in the yeast Candida utilis. A single-chain monellin gene was expressed under the control of the glyceraldehyde-3-phosphate decarboxylase gene promoter from C. utilis. A promoter-deficient marker gene allowed high-copy-number integration of vectors into either the rDNA locus or the URA3 gene locus. Monellin was produced at a high level, accounting for >50% of the soluble protein. No significant decrease in the production level of monellin was detected in transformants after 50 generations of nonselective growth.
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Kondo, K., Miura, Y., Sone, H. et al. High-level expression of a sweet protein, monellin, in the food yeast Candida utilis. Nat Biotechnol 15, 453–457 (1997). https://doi.org/10.1038/nbt0597-453
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DOI: https://doi.org/10.1038/nbt0597-453