In the mid-1970s, information technology and recombinant DNA technology were considered as the breakthrough technologies of the final quarter of the 20th century. Now, about 25 years later, information technology has penetrated deeply into our society and nearly everyone uses this technology. Compared to the formidable success of information technology, the progress in the commercialization of recombinant DNA technology is moderate, even when taking into account that all that is related to the technological application of biological sciences needs extensive safety testing. However, there are signs that the speed of this commercialization will increase in the first decade of the 21st century. Moreover, new breakthroughs in our understanding of the complete genetic make up of eukaryotes will contribute to this increase in speed. An important aspect of the commercialization of this technology is the development of cells as factories for the production of valuable and/or useful molecules. Lower eukaryotes, such as yeasts and molds, are the most promising candidates to become the factories of the future, but at present these factories still contains a lot of process lines that may be superfluous under the well controlled conditions in fermentors. On the other hand, the speed and yield of these cellular production lines can be increased by eliminating the rate-determining steps of these process lines. In this contribution to the European Union symposium from Cell to Factory, some steps in the improvement of S. cerevisiae as cell factories for (heterologous) hydrophobic molecules are presented.

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Journal Article

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Verripsab T, Duboc P, Visser C, Sagt C

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