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| Content Provider | Springer Nature Link |
|---|---|
| Author | Gao, Shuliang Tong, Yangyang Zhu, Li Ge, Mei Jiang, Yu Chen, Daijie Yang, Sheng |
| Copyright Year | 2017 |
| Abstract | To obtain functional expression of a heterologous multifunctional carotene synthase containing phytoene synthase, phytoene dehydrogenase, and lycopene β-cyclase activities encoded by carS from Schizochytrium sp. in order to allow Yarrowia lipolytica to produce β-carotene.To increase the integration efficiency of a 3.8 kb carS under the control of P GPD promoter with a 2 kb selection marker, ura3, along with a geranylgeranyl diphosphate synthase (GGS1) expression cassette (~10 kb in total), was inserted into the Y. lipolytica chromosome, and the DNA assembler method was combined with double chromosomal deletions of ku70 and ku80. This method resulted in a 13.4-fold increase in integration efficiency compared with the original method, reaching 63% (10/16). The resulting recombinant Y. lipolytica produced 0.41 mg β-carotene per g dry cell weight, while the wild type did not produce any indicating the functionality of the multifunctional carotene synthase in Y. lipolytica.Expression of GGS1 and a multifunctional carotene synthase from Schizochytrium sp. in Y. lipolytica led to β-carotene production. DNA assembler efficiency was greatly increased by the deletion of ku70 and ku80, which resulted in decreased in vivo nonhomologous end-joining (NHEJ) in Y. lipolytica. |
| Starting Page | 921 |
| Ending Page | 927 |
| Page Count | 7 |
| File Format | |
| ISSN | 01415492 |
| Journal | Biotechnology Letters |
| Volume Number | 39 |
| Issue Number | 6 |
| e-ISSN | 15736776 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2017-03-13 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | β-Carotene Carotene synthase complex carS DNA assembler Multifunctional carotene synthase Yarrowia lipolytica Microbiology Biotechnology Applied Microbiology Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology |
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