22-03-2018 дата публикации
Номер: US20180080054A1
Принадлежит:
This invention provides recombinant cells and methods for producing terpenes and terpenoids by increasing production or accumulation or both of isoprenoid precursors thereof. 149-. (canceled)50. A method for producing a terpene or a terpenoid in a recombinant host cell , comprising culturing the recombinant host cell under conditions wherein the terpene or terpenoid is produced in the recombinant host cell , wherein the recombinant host cell is genetically engineered to produce reduced expression of an endogenous farnesyl diphosphate (FPP) synthase , an endogenous geranyl diphosphate (GPP) synthase or an endogenous enzyme having both FPP synthase and GPP synthase activity.51. The method of claim 50 , wherein reduced expression is produced in the recombinant host cell by:(a) introducing into the recombinant host cell a heterologous genetic construct encoding the endogenous FPP synthase, the endogenous GPP synthase, or the endogenous enzyme having both FPP synthase and GPP synthase activity operably linked to an exogenous weak promoter, wherein the weak promoter is KEX2, PGK-1, GPD1, ADH1, ADH2, PYK1, TPi1, PDC1, TEF1, TEF2, FBA1, GAL1-10, CUP1, MET2, MET14, MET25, CYC1, GAL1-S, GAL1-L, TEF1, CAG, CMV, human UbiC, RSV, EF-1alpha, SV40, Mt1, Tet-On, Tet-Off, Mo-MLV-LTR, Mx1, progesterone, RU486 or Rapamycin-inducible promoter;(b) introducing into the recombinant host cell a heterologous genetic construct encoding the endogenous FPP synthase, the endogenous GPP synthase, or the endogenous enzyme having both FPP synthase and GPP synthase activity operably linked to a messenger RNA destabilizing motif, comprising a M1 motif of SEQ ID NO:28 and/or a M24 motif of SEQ ID NO:29; or {'br': None, 'sub': 1', '2', '3', '4', '5, '-X-X-X-X-X-;'}, '(c) introducing into the recombinant host cell a recombinant genetic construct, the construct comprising a gene encoding the endogenous FPP synthase, the endogenous GPP synthase, or the endogenous enzyme having both FPP synthase and GPP ...
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