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| Content Provider | Springer Nature Link |
|---|---|
| Author | Carlsen, Simon Ajikumar, Parayil Kumaran Formenti, Luca Riccardo Zhou, Kang Phon, Too Heng Nielsen, Michael Lynge Lantz, Anna Eliasson Kielland Brandt, Morten C. Stephapoulos, Gregory |
| Copyright Year | 2013 |
| Abstract | Transfer of a biosynthetic pathway between evolutionary distant organisms can create a metabolic shunt capable of bypassing the native regulation of the host organism, hereby improving the production of secondary metabolite precursor molecules for important natural products. Here, we report the engineering of Escherichia coli genes encoding the 2-C-methyl-d-erythritol-4-phosphate (MEP) pathway into the genome of Saccharomyces cerevisiae and the characterization of intermediate metabolites synthesized by the MEP pathway in yeast. Our UPLC-MS analysis of the MEP pathway metabolites from engineered yeast showed that the pathway is active until the synthesis of 2-C-methyl-d-erythritol-2,4-cyclodiphosphate, but appears to lack functionality of the last two steps of the MEP pathway, catalyzed by the [4Fe–4S] iron sulfur cluster proteins encoded by ispG and ispH. In order to functionalize the last two steps of the MEP pathway, we co-expressed the genes for the E. coli iron sulfur cluster (ISC) assembly machinery. By deleting ERG13, thereby incapacitating the mevalonate pathway, in conjunction with labeling experiments with U–13C6 glucose and growth experiments, we found that the ISC assembly machinery was unable to functionalize ispG and ispH. However, we have found that leuC and leuD, encoding the heterodimeric iron–sulfur cluster protein, isopropylmalate isomerase, can complement the S. cerevisiae leu1 auxotrophy. To our knowledge, this is the first time a bacterial iron–sulfur cluster protein has been functionally expressed in the cytosol of S. cerevisiae under aerobic conditions and shows that S. cerevisiae has the capability to functionally express at least some bacterial iron–sulfur cluster proteins in its cytosol. |
| Starting Page | 5753 |
| Ending Page | 5769 |
| Page Count | 17 |
| File Format | |
| ISSN | 01757598 |
| Journal | Applied Microbiology and Biotechnology |
| Volume Number | 97 |
| Issue Number | 13 |
| e-ISSN | 14320614 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2013-05-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | Metabolic engineering Terpenoids MEP pathway Heterologous expression S. cerevisiae Iron–sulfur cluster proteins Biotechnology Microbiology Microbial Genetics and Genomics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Applied Microbiology and Biotechnology Biotechnology |
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