摘要:
The invention provides methods, materials and systems of regulating association between proteins of interest using light. In an aspect, the invention takes advantage of the ability of phytochromes to change conformation upon exposure to appropriate light conditions, and to bind in a conformation-dependent manner to cognate proteins called phytochrome-interacting factors. The invention comprises a method of regulating interaction between a first protein of interest and second protein within a cell by light. Such a method optionally comprises providing in the cell (1) a first protein construct which comprises the first protein, a phytochrome domain (PHD), and (2) providing in the cell a second protein construct which comprises the second protein and a phytochrome domain-interacting peptide (PIP) that can bind selectively to the Pfr state, but not to the Pr state, of the phytochrome domain.
摘要:
The invention relates to systems and methods for production of compounds by yeast and other organisms. In one approach yeast engineered for production of a compound of commercial value is cultured together with a cellulosic bacteria, and the yeast uses a metabolic product produced by the bacteria as a carbon source. Methyl halides are an example of compounds that may be produced by this process. The invention also relates to production of organic compounds using genetically engineered organisms expressing a S-adenosylmethionine (SAM)-dependent methyl halide transferase. In one approach the organism, halides and a carbon source are incubated in a cultivation medium under conditions in which methyl halide is produced. The methyl halide may be collected and converted into non-halogenated organic molecules.
摘要:
Disclosed is a process in which a recombinant organism, such as a yeast, expressing a heterologous S-adenosylmethionme (SAM)-dependent methyl halide transferase (MHT) protein is combined with a halide and a carbon source in a cultivation medium under conditions in which methyl formate is produced. The cell may genetically modified to express methyl formate synthase, methanol dehydrogenase and/or hydrolytic dehalogenase at levels higher than a cell of the same species that is not genetically modified. The methyl formate may be collected and used in a variety of applications. The halide may be chlorine, bromine or iodine.
摘要:
The invention relates to systems and methods for production of compounds by yeast and other organisms. In one approach yeast engineered for production of a compound of commercial value is cultured together with a cellulosic bacteria, and the yeast uses a metabolic product produced by the bacteria as a carbon source. Methyl halides are an example of compounds that may be produced by this process. The invention also relates to production of organic compounds using genetically engineered organisms expressing a S-adenosylmethionine (SAM)-dependent methyl halide transferase. In one approach the organism, halides and a carbon source are incubated in a cultivation medium under conditions in which methyl halide is produced. The methyl halide may be collected and converted into non-halogenated organic molecules.
摘要:
Disclosed is a process in which a recombinant organism, such as a yeast, expressing a heterologous S-adenosylmethionine (SAM)-dependent methyl halide transferase (MHT) protein is combined with a halide and a carbon source in a cultivation medium under conditions in which methyl formate is produced. The cell may genetically modified to express methyl formate synthase, methanol dehydrogenase and/or hydrolytic dehalogenase at levels higher than a cell of the same species that is not genetically modified. The methyl formate may be collected and used in a variety of applications. The halide may be chlorine, bromine or iodine.
摘要:
The invention provides methods, materials and systems of regulating association between proteins of interest using light. In an aspect, the invention takes advantage of the ability of phytochromes to change conformation upon exposure to appropriate light conditions, and to bind in a conformation-dependent manner to cognate proteins called phytochrome-interacting factors. The invention comprises a method of regulating interaction between a first protein of interest and second protein within a cell by light. Such a method optionally comprises providing in the cell (1) a first protein construct which comprises the first protein, a phytochrome domain (PHD), and (2) providing in the cell a second protein construct which comprises the second protein and a phytochrome domain-interacting peptide (PIP) that can bind selectively to the Pfr state, but not to the Pr state, of the phytochrome domain.
摘要:
The invention relates to a process for production of organic compounds using genetically engineered organisms expressing a S-adenosylmethionine (SAM)-dependent methyl halide transferase and, optionally modified at loci that affect flux through SAM metabolic pathways or affect intracellular halide levels. In one approach the organism, halides (chlorine, bromine and/or iodine); and a carbon source are incubated in a cultivation medium under conditions in which methyl halide is produced. The methyl halide may be collected and converted into non-halogenated organic molecules.