Methods and compositions for production of aromatic and other compounds in yeast
The present disclosure includes methods and components for production of valuable industrial compounds in yeast. In an embodiment, the present invention provides a nucleic acid construct with increased stability for gene expression or gene editing comprising: a nucleic acid sequence encoding one or more of SEQ ID NO: 1-8 (CENs 1-8); and one or more regulatory elements functional in a yeast cell. In an embodiment of the present invention the nucleic acid constructs are vectors, preferably episomal vectors. High expression promoters, as well as methods for increasing production of compounds such as aromatics are disclosed.
1. A vector for gene expression or gene editing in yeast comprising: a nucleic acid sequence one SEQ ID NO: 5 (CEN 5); and one or more regulatory elements functional in a yeast cell, wherein the vector is an episomal vector.
2. The vector claim 1 , wherein said vector further comprises an autonomously replicating sequence (ARS).
3. The vector of claim 1 , wherein said vector includes a multiple cloning site for insertion of a gene of interest or a gene editing system operably linked to the regulatory elements.
4. The vector of claim 1 , wherein the regulatory element is a promoter.
5. The vector of claim 1 , wherein said regulatory element is a terminator sequence.
6. The vector of claim 3 , wherein the gene of interest is inserted in the multiple cloning site.
7. The vector of claim 3 , wherein the gene editing system is inserted in the multiple cloning site.
8. The vector of claim 1 , wherein said vector has increased stability compared to the same vector lacking SEQ ID NO: 5 (CEN 5).
9. A cell, tissue, or organ comprising the vector of claim 1 .
10. The vector of claim 4 , wherein the promoters are selected from the group consisting of: sADH1p, sENO1p, sPIR1p, sTDH2p, sAOX1p, and sTEF1p (SEQ ID NO:9-14).
11. The vector of claim 5 , wherein the terminators are selected from the group consisting of: ADH1t, sAOX1t, ENO1t, sGLN1t, sUAGt, sOLE1t, PGK1t, sPIR1t, sTDH2t, and TEF1t (SEQ ID NO:19-28).
12. The vector of claim 6 , wherein said gene of interest is one or more of tkt1, aro4 K220L and aro1 D920A .
13. A yeast cell comprising the vector of claim 12 .
14. The yeast cell of claim 13 , wherein said yeast cell is S. stipitis.
15. The vector of claim 7 , wherein the gene editing system comprises a polynucleotide encoding a Cas protein and/or a guide-polynucleotide.