Abstract:
Provided herein are engineered systems and methods for establishing DNA adenine methylation at specific genomic locations and using DNA adenine methylation as an artificial chemical “handle” on the genome. These systems and methods allow for placing the handle on specific genomic locations as well as molecular technologies to bind, spatially spread, and maintain the handle. The systems described herein comprise, in some embodiments, three functional modules that mediate m6A operations: (1) a synthetic initiator module to place m6A at specific genomic sites; (2) a synthetic readout module to program m6A recognition and m6A-dependent transcriptional logic; and (3) propagation module that implements “read-write,” a mechanism proposed to underlie chromatin spreading and epigenetic maintenance across cellular systems.
Abstract:
The present invention concerns a method for genetically transforming a Bifidobacterium strain comprising a step of methylation of a shuttle vector in an E. coli or a Gram-positive bacterium strain by two type II DNA methyltransferases from a Bifidobacterium: a methyltransferase enzyme that methylates the adenine base at position 4 of the nucleotide sequence RTCAGG and a methyltransferase enzyme that methylates the cytosine base at position 4 of the nucleotide sequence GGWCC. The present invention also concerns genetic tools and culture media useful for carrying out said method.
Abstract:
The present invention relates to a method of increasing plant resistance to plant pathogens, particularly Sudden Death Syndrome in soybean against Fusarium virguliforme, through the use of Fusarium resistance nucleic acid molecules isolated from Glycine max and Fusarium virguliforme. In these plants, at least one heterologous Fusarium resistance protein is introduced in comparison to the wild-type plants to confer resistance to plant pathogens. The invention relates to transgenic plants and/or plant cells having increased resistance to plant pathogens, to expression vectors, transformed plants and plant cells as well as the use of such plants in a plant breeding program.
Abstract:
Methods and constructs for RNA-guided targeting of heterologous functional domains such as transcriptional activators to specific genomic loci.
Abstract:
The present disclosure is directed to the biosynthetic pathway for a nonribosomal peptide synthetase (NRPS)-derived drug and analogs thereof. The invention provides polynucleotide sequences useful for heterologous expression in a convenient microbial host for the synthesis of the NRPS-derived drug, the polypeptides encoded by such polynucleotides, expression vectors comprising the polynucleotides, host cells comprising the polynucleotides or expression vectors, and kits comprising a host cell. Also provided is a method for the production of ET-743, the NRPS-derived drug.
Abstract:
Methods and genetic sequences are described for use in determining the diagnosis, subtype, prognosis, and disease course of high-grade gliomas, such as glioblastoma multiforme. One such method includes determining increased expression of at least one gene on a chromosome segment in cells of the glioma, the segment being 17:57,851,812-17:57,973,757; 7:127,892,509-7:127,947,649; 12:33,854-12:264,310; or 19:33,329,393-19:35,322,055; and estimating, based on the expression, a predicted length of survival, a probability of survival, or a predicted response to a therapy for the glioma.
Abstract:
A microorganism of the genus Escherichia having enhanced L-amino acid productivity, wherein the microorganism is transformed to have an enhanced NAD kinase activity and an inactivated activity of an enzyme having an amino acid sequence of SEQ ID NO: 2 encoded by tehB gene and a method for producing L-amino acids using the microorganism of the genus Escherichia.
Abstract translation:具有增强的L-氨基酸生产力的埃希氏菌属的微生物,其中所述微生物被转化为具有增强的NAD激酶活性和具有由tehB基因编码的SEQ ID NO:2的氨基酸序列的酶和 使用埃希氏杆菌属微生物生产L-氨基酸的方法。
Abstract:
A microorganism of the genus Escherichia having enhanced L-amino acid productivity, wherein the microorganism is transformed to have an enhanced NAD kinase activity and an inactivated activity of an enzyme having an amino acid sequence of SEQ ID NO: 2 encoded by tehB gene and a method for producing L-amino acids using the microorganism of the genus Escherichia.
Abstract translation:具有增强的L-氨基酸生产力的埃希氏菌属的微生物,其中所述微生物被转化为具有增强的NAD激酶活性和具有由tehB基因编码的SEQ ID NO:2的氨基酸序列的酶和 使用埃希氏杆菌属微生物生产L-氨基酸的方法。
Abstract:
Provided herein is a non-naturally occurring microbial organism having a methanol metabolic pathway (MMP) that can enhance the availability of reducing equivalents in the presence of methanol. Such reducing equivalents can be used to increase the product yield of organic compounds produced by the microbial organism, such as 1,4-butanediol (BDO). Also provided herein are methods for using such an organism to produce BDO.