66 results about "DNA construct" patented technology

Provided herein are methods and compositions for truncating and, optionally, joining polynucleotides. The methods bypass inefficient cloning methods and the requirement for expensive enzymes by using in vivo homologous recombination in conjunction with specific endonuclease digestion. The methods may further be used to assemble long fragments of DNA from existing DNA constructs or libraries or to generate novel DNA libraries.

The present invention provides a simple and inexpensive system for regulating signal peptide performance by using a synthetically evolved nucleotide sequence. The invention further relates to an expression vector comprising the nucleotide sequence. Additionally, the present invention relates to host cell comprising the expression vector. Furthermore, the present invention relates to a recombinant protein expressed by the host cell as well as a method for expressing the recombinant protein.

The present invention relates to a DNA construct that codes for a fusion protein comprising at least two enterohemorrhagic Escherichia coli antigens, for example, the antigens Int280, EspB, EspA, Stx2B, EspD, combinations or fragments thereof, vectors, fusion protein, immunisation methods and vaccines. The coded antigens can be fused Int280 and EspB of enterohemorrhagic Escherichia coli, forming a fusion protein with or without a connecting sequence between the two. The fused antigens can show the amino acid sequence SEQ ID No. 3 or SEQ ID No. 4 and are coded by the nucleotide sequence in SEQ ID No. 1 and SEQ ID No. 2. The construct can also comprise a signal sequence and a binding sequence for binding to the membrane of bacteria.

Cyclic dinucleotides (CDRs) are signaling molecules for cancer therapy, acting as second messengers for intracellular events initiated by GPCR activation and stimulating factors for the interferon gene (STING), thus significantly influencing tumor suppression. Simultaneously, when cancer occurs in a subject, angiogenesis and cell growth proceed at very high rates in vivo, creating a hypoxic environment due to incomplete angiogenesis in cancerous tissue. This environment can be highly conducive to the proliferation of anaerobic bacteria such as Salmonella strains or Escherichia coli. Therefore, this invention relates to a DNA construct incorporating a gene encoding an enzyme for synthesizing cancer therapeutic signaling molecules (e.g., CDRs), or to strains transformed with a vector containing the DNA construct. According to the invention, the DNA construct or strains transformed with a vector containing the DNA construct target cancer in a subject and then secrete C-di-AMP or C-di-GMP synthases in the surrounding environment of the cancer, thus enabling highly effective prevention or treatment of cancer while allowing for real-time cancer diagnosis.

In one aspect, disclosed herein are DNA constructs and biological devices comprising S. cerevisiae cells and extracts and lysates produced therefrom, wherein the DNA constructs encode genes related to NAD+ synthesis and wherein the extracts and lysates produced therefrom include one or more of NAD+, NADP+, NADH, and / or NADPH. Also disclosed are nutritional and pharmaceutical compositions including the extracts and lysates and the coenzymes produced therefrom. In some aspects, the disclosed extracts and lysates can be added to food and beverage products to improve the nutritional profiles of the same.

The present invention is generally in the field of synthetic biology, gene therapy and cell therapy. In particular, the present invention relates to synthetic transcription factors comprising a DNA binding domain derived from a mitochondrial DNA binding protein (e.g., MTERF1) and a transcriptional regulatory domain derived from one or more other proteins; nucleic acids or combinations of nucleic acids encoding the synthetic transcription factors of the invention; a DNA construct comprising an MTERF1 binding site and a minimum promoter; a system comprising a synthetic transcription factor of the invention and a DNA construct of the invention; and uses thereof, such as medical uses.

Compositions and methods for modifying genomic DNA sequences are provided. The methods produce double-stranded breaks (DSBs) at pre-determined target sites in a genomic DNA sequence, resulting in mutation, insertion, and / or deletion of DNA sequences at the target site(s) in a genome. Compositions comprise DNA constructs comprising nucleotide sequences that encode a Cms1 protein operably linked to a promoter that is operable in the cells of interest. The DNA constructs can be used to direct the modification of genomic DNA at pre-determined genomic loci. Methods to use these DNA constructs to modify genomic DNA sequences are described herein. Additionally, compositions and methods for modulating the expression of genes are provided. Compositions comprise DNA constructs comprising a promoter that is operable in the cells of interest operably linked to nucleotide sequences that encode a mutated Cms1 protein with an abolished ability to produce DSBs, optionally linked to a domain that regulates transcriptional activity. The methods can be used to up- or down-regulate the expression of genes at predetermined genomic loci.

Pesticidal proteins exhibiting inhibitory, suppressive, and toxic activity against Lepidopteran pest species are disclosed, and include, but are not limited to, TIC4064 and TIC4064 amino acid sequence variants. DNA constructs are provided which contain a recombinant nucleic acid sequence encoding one or more of the disclosed pesticidal proteins. Transgenic plants, plant cells, seed, and plant parts resistant to Lepidopteran infestation are provided which contain recombinant nucleic acid sequences encoding the pesticidal proteins of the present invention. Methods for detecting the presence of the recombinant nucleic acid sequences or the proteins of the present invention in a biological sample, and methods of controlling Lepidopteran species pests using any of the TIC4064 and TIC4064 amino acid sequence variant pesticidal proteins are also provided.

A novel ubiquitous chromatin opening element (UCOE) named SRF-UCOE and methods for its use are provided. Compositions including recombinant and synthetic SRF-UCOE nucleic acid molecules, DNA constructs and vectors comprising the SRF-UCOE nucleic acid molecules, host cells comprising the DNA constructs or vectors, and cell culture systems comprising such host cells. SRF-UCOE polynucleotide sequences can be used in DNA constructs or expression cassettes for transformation and expression in cells or organisms of interest. The compositions and methods provided are useful for increasing and / or maintaining expression of a gene of interest. Transgenic cells, tissues, and animals comprising a SRF-UCOE nucleotide sequence are also provided. Methods are provided for increasing and / or maintaining expression of a gene of interest and for treating a subject via gene therapy.

The present invention relates to means and methods for producing adeno-associated virus capsid libraries using insect host cells. In particular, the present invention relates to novel DNA constructs and methods of using these constructs to produce libraries of adeno-associated virus capsids in insect host cells, which minimize the occurrence of cross-packaging and chimeric phenomena in these libraries produced. The present invention further relates to methods for identifying AAV capsid variants having one or more desired characteristics such as, for example, a combination of CNS tropism and peripheral organ de-targeting.

The present invention relates to a method for editing the genome of a cell, such as a yeast cell. The method of the present invention requires the cell to be contacted with at least one ribonucleoprotein, at least one donor-DNA construct and a selectable marker such that they are introduced into the cell. The present invention is especially suitable for multiplex genome editing of cells such as yeast cells. The current invention further relates to a composition, a cell obtainable by the method of the invention and a method for the production of a compound of interest.

A DNA construct for expressing a recombinant protein, wherein the DNA construct comprises: —at least one of the nucleotide sequences of SEQ ID No 20 and 21, wherein a nucleotide sequence of SEQ ID 20 and 21 is a TIR sequence; and —a nucleotide sequence which encodes a signal peptide; and wherein a nucleotide sequence of SEQ ID No 20 and 21 comprises at least the first 9 nucleotides of said signal peptide encoding sequence.

The present disclosure provides methods and compositions for improving the in vitro transcription (IVT) of messenger RNA (mRNA) using SP6, T7, or KP34 RNA polymerase. In particular, the present disclosure provides in vitro transcription templates with optimized nucleic acid sequences specific for use with SP6, T7, or KP34 RNA polymerase that improve mRNA transcript yield and / or reduce amounts of dsRNA.

This disclosure relates to devices and methods for administering therapeutic compositions to the pharyngeal muscles. Specifically, the devices and methods of this disclosure may be used to treat or prevent dysphagia, including dysphagia associated with oculopharyngeal dystrophy (OPMD), in individuals suffering from or predisposed to dysphagia. In addition, this disclosure relates to devices and methods used to deliver modified adeno-associated virus (AAV) delivery vectors containing a "silence and substitution" DNA construct, including compositions containing a "silence and substitution" DNA construct.

This application relates to a DNA construct for overexpressing a target gene in *Schizochytrium* microorganisms, and a method for expressing the target gene in *Schizochytrium* microorganisms using the construct. The DNA construct includes a 5' homologous arm and a 3' homologous arm capable of hybridizing to a high-expression site in the *Schizochytrium* microorganism genome.

The present disclosure provides nucleic acids obtained from Bacillus thuringiensis strains, and variants and fragments thereof, which encode polypeptides having pesticidal activity against insect pests including Lepidoptera. Particular embodiments of the present disclosure provide isolated nucleic acids encoding pesticidal proteins, pesticidal compositions, DNA constructs, and transformed microorganisms and plants comprising the nucleic acids of the embodiments. These compositions can be applied in methods for controlling pests, particularly plant pests.

The invention provides nucleic acids, and variants and fragments thereof, obtained from strains of Bacillus thuringiensis encoding polypeptides having pesticidal activity against insect pests, including Lepidoptera. Particular embodiments of the invention provide isolated nucleic acids encoding pesticidal proteins, pesticidal compositions, DNA constructs, and transformed microorganisms. These compositions find use in methods for controlling pests, especially plant pests..

The present invention provides loop-mediated riboregulators for the detection of SARS-CoV-2. Also provided are DNA constructs encoding the loop-mediated riboregulators and methods of using the loop-mediated riboregulators to detect the presence of SARS-CoV-2 in a sample.

The present invention relates primarily to a DNA construct for use in the treatment of ocular conditions and for the non-viral transfer of nucleic acids into ocular muscle cells of a patient suffering from an ocular condition; it is particularly characterized in that it comprises a first sequence encoding a first therapeutic protein and a second sequence encoding a second therapeutic protein different from the first therapeutic protein, the DNA construct being administered to the patient by injection into the ciliary muscle followed by electrotransfer into the ciliary muscle cells.

The present invention relates to DNA constructs comprising a novel TIS sequence. The TIS sequence transcribes into an RNA motif that functions as the protein translation initiation site in an mRNA transcript. The DNA construct may further comprise a nucleic acid sequence encoding signal peptide. Additionally, the DNA constructs may also comprise a nucleic acid sequence encoding a recombinant protein or one or more polypeptide chains thereof. The invention further relates to an expression vector, expression cassette and host cell which comprise said DNA constructs. Furthermore, the present invention relates to a recombinant protein expressed by the host cell as well as a method for expressing the recombinant protein.

The present invention relates, in certain embodiments, to a fusion protein comprising a DEEP fusion tag and a target protein (e.g., protein of interest). In various other embodiments, the invention provides methods of producing a fusion protein comprising a DEEP fusion tag and a target protein, constructs comprising a nucleotide sequence encoding a DEEP fusion tag and a cloning site for introducing a nucleotide sequence encoding a target protein, and kits comprising such DNA constructs.

Provided herein are methods and compositions for modifying the genome of human T cells. Further, the compositions and methods described herein can be used to generate human T cells with altered specificity and functionality, while limiting the side effects associated with T cell therapies. Provided herein is a human T cell that heterologously expresses one or more polypeptides. In some embodiment, the one or more polypeptides, for example, two or more polypeptides, are encoded by a nucleic acid construct inserted into the TCR locus of the cell.

The invention provides nucleic acids, and variants and fragments thereof, obtained from strains of Bacillus thuringiensis encoding polypeptides having pesticidal activity against insect pests, including Lepidoptera and Coleoptera. Particular embodiments of the invention provide isolated nucleic acids encoding pesticidal proteins, pesticidal compositions, DNA constructs, and transformed microorganisms and plants comprising a nucleic acid of the embodiments. These compositions find use in methods for controlling pests, especially plant pests.

Provided herein, inter alia, are fusion DNA constructs comprising improved protease recognition sequences for expression and purification of one or more polypeptides of interest, and methods for producing one or more polypeptides of interest in recombinant host cells.

The present invention provides a genetically modified non-human animal or the like that functionally lacks an endogenous ABCB1 gene and that functionally expresses the human ABCB1 gene, the genetically modified non-human animal or the like retaining a DNA construct for functionally expressing the human ABCB1 gene, wherein the DNA construct includes a coding sequence for the human ABCB1 gene, a CAR / PXR response element present in the 5' promoter region of the human ABCB1 gene, at least one intron of the human ABCB1 gene, and a sequence of the enhancer region present at the 3' end side of the human ABCB1 gene, and the DNA construct does not include at least a portion of the coding sequence for the human ABCB4 gene or includes only a portion of the human RUNDC3B gene.

Hypersensitive response eliciting peptides exhibiting improved solubility, stability, resistance to chemical degradation, or a combination of these properties are disclosed. Also disclosed are uses of these peptides or fusion polypeptides or DNA constructs encoding the same for modulating plant biochemical signaling, conferring disease resistance to a plant, enhancing plant growth, conferring tolerance to a plant to a biotic stress, conferring tolerance and resistance to a plant to an abiotic stress, conferring desiccation resistance to a cutting taken from an ornamental plant, conferring postharvest disease resistance or postharvest desiccation resistance to a fruit or vegetable, or enhancing the postharvest life of a fruit or vegetable.

The present disclosure relates to DNA constructs encoding CD19-specific chimeric antigen receptors (CARs) and other recombinant proteins, such as CD70-binding proteins or CD70-specific CARs, as well as engineered immune cells (e.g., CD19-specific CAR T cells or CD19 / CD70 dual CAR T cells) comprising the DNA constructs, methods of making the same, and uses thereof in therapeutic applications.

Compositions and methods for modifying genomic DNA sequences are provided. The methods produce double-stranded breaks (DSBs) at pre-determined target sites in a genomic DNA sequence, resulting in mutation, insertion, and / or deletion of DNA sequences at the target site(s) in a genome. Compositions comprise DNA constructs comprising nucleotide sequences that encode a Cms1 protein operably linked to a promoter that is operable in the cells of interest. The DNA constructs can be used to direct the modification of genomic DNA at pre-determined genomic loci. Methods to use these DNA constructs to modify genomic DNA sequences are described herein. Additionally, compositions and methods for modulating the expression of genes are provided. Compositions comprise DNA constructs comprising a promoter that is operable in the cells of interest operably linked to nucleotide sequences that encode a mutated Cms1 protein with an abolished ability to produce DSBs, optionally linked to a domain that regulates transcriptional activity. The methods can be used to up-or down-regulate the expression of genes at predetermined genomic loci.

Pesticidal protein exhibiting toxic activity against Hemipteran and Lepidopteran pest species are disclosed, and include, but are not limited to, TIC11207 and TIC11304. DNA constructs are provided which contain a recombinant nucleic acid sequence encoding the disclosed pesticidal protein. Transgenic plants, plant cells, seed, and plant parts resistant to Hemipteran and Lepidopteran infestation are provided which contain recombinant nucleic acid sequences encoding the pesticidal proteins of the present invention. Methods for detecting the presence of the recombinant nucleic acid sequences or the protein of the present invention in a biological sample, and methods of controlling Hemipteran and Lepidopteran species pests using TIC11207 and TIC11304 pesticidal proteins are also provided.