497results about "Fusion with DNA-binding domain" patented technology

Gene targeting is a technique to introduce genetic change into one or more specific locations in the genome of a cell. For example, gene targeting can introduce genetic change by modifying, repairing, attenuating or inactivating a target gene or other chromosomal DNA. In one aspect, this disclosure relates to methods and compositions for gene targeting with high efficiency in a cell. This disclosure also relates to methods of treating or preventing a genetic disease in an individual in need thereof. Further disclosed are chimeric nucleases and vectors encoding chimeric nucleases.

The present invention provides methods for modulating expression of endogenous cellular genes using engineered zinc finger proteins.

Disclosed herein are methods and compositions for targeted cleavage of a genomic sequence, targeted alteration of a genomic sequence, and targeted recombination between a genomic region and an exogenous polynucleotide homologous to the genomic region. The compositions include fusion proteins comprising a cleavage domain (or cleavage half-domain) and an engineered zinc finger domain and polynucleotides encoding same. Methods for targeted cleavage include introduction of such fusion proteins, or polynucleotides encoding same, into a cell. Methods for targeted recombination additionally include introduction of an exogenous polynucleotide homologous to a genomic region into cells comprising the disclosed fusion proteins.

Some aspects of this disclosure provide strategies, systems, reagents, methods, and kits that are useful for the targeted editing of nucleic acids, including editing a single site within the genome of a cell or subject, e.g., within the human genome. In some embodiments, fusion proteins of Cas9 and nucleic acid editing enzymes or enzyme domains, e.g., deaminase domains, are provided. In some embodiments, methods for targeted nucleic acid editing are provided. In some embodiments, reagents and kits for the generation of targeted nucleic acid editing proteins, e.g., fusion proteins of Cas9 and nucleic acid editing enzymes or domains, are provided.

The present invention relates to a method for the generation of compact Transcription Activator-Like Effector Nucleases (TALENs) that can efficiently target and process double-stranded DNA. More specifically, the present invention concerns a method for the creation of TALENs that consist of a single TALE DNA binding domain fused to at least one catalytic domain such that the active entity is composed of a single polypeptide chain for simple and efficient vectorization and does not require dimerization to target a specific single double-stranded DNA target sequence of interest and process DNA nearby said DNA target sequence. The present invention also relates to compact TALENs, vectors, compositions and kits used to implement the method.

This invention provides a method of detecting polymorphisms, e.g., single nucleotide polymorphisms (SNPs), by amplification and error correction. The invention encompasses methods of performing amplification and error correction using an improved generation of nucleic acid polymerases, and methods of multiplexing the assay. The improvement to the polymerases is the joining of a sequence-non-specific nucleic-acid-binding domain to the enzyme in a manner that enhances the ability of the enzyme to bind and catalytically modify the nucleic acid.

Some aspects of this disclosure provide compositions, methods, and kits for improving the specificity of RNA-programmable endonucleases, such as Cas9. Also provided are variants of Cas9, e.g., Cas9 dimers and fusion proteins, engineered to have improved specificity for cleaving nucleic acid targets. Also provided are compositions, methods, and kits for site-specific recombination, using Cas9 fusion proteins (e.g., nuclease-inactivated Cas9 fused to a recombinase catalytic domain). Such Cas9 variants are useful in clinical and research settings involving site-specific modification of DNA, for example, genomic modifications.

Some aspects of this disclosure provide compositions, methods, and kits for improving the specificity of RNA-programmable endonucleases, such as Cas9. Also provided are variants of Cas9, e.g., Cas9 dimers and fusion proteins, engineered to have improved specificity for cleaving nucleic acid targets. Also provided are compositions, methods, and kits for site-specific nucleic acid modification using Cas9 fusion proteins (e.g., nuclease-inactivated Cas9 fused to a nuclease catalytic domain). Such Cas9 variants are useful in clinical and research settings involving site-specific modification of DNA, for example, genomic modifications.

This invention provides for an improved generation of novel nucleic acid modifying enzymes. The improvement is the fusion of a sequence-non-specific nucleic-acid-binding domain to the enzyme in a manner that enhances the ability of the enzyme to bind and catalytically modify the nucleic acid.

Compositions, methods, strategies, kits, and systems for the supercharged protein-mediated delivery of functional effector proteins into cells in vivo, ex vivo, or in vitro are provided. Compositions, methods, strategies, kits, and systems for delivery of functional effector proteins using cationic lipids and cationic polymers are also provided. Functional effector proteins include, without limitation, transcriptional modulators (e.g., repressors or activators), recombinases, nucleases (e.g., RNA-programmable nucleases, such as Cas9 proteins; TALE nuclease, and zinc finger nucleases), deaminases, and other gene modifying / editing enzymes. Functional effector proteins include TALE effector proteins, e.g., TALE transcriptional activators and repressors, as well as TALE nucleases. Compositions, methods, strategies, and systems for the delivery of functional effector proteins into cells is useful for therapeutic and research purposes, including, but not limited to, the targeted manipulation of a gene associated with disease, the modulation of the expression level of a gene associated with disease, and the programming of cell fate.

Some aspects of this disclosure provide strategies, systems, reagents, methods, and kits that are useful for the targeted editing of nucleic acids, including editing a nucleic acid encoding a mutant Caspase-9 protein to correct a point mutation associated with a disease or disorder, e.g., with neuroblastoma. The methods provided are useful for correcting a Caspase-9 point mutation within the genome of a cell or subject, e.g., within the human genome. In some embodiments, fusion proteins of Cas9 and nucleic acid editing enzymes or enzyme domains, e.g., deaminase domains, are provided. In some embodiments, reagents and kits for the generation of targeted nucleic acid editing proteins, e.g., fusion proteins of Cas9 and nucleic acid editing enzymes or domains, are provided.

This invention relates to the field of biotechnology or genetic engineering. Specifically, this invention relates to the field of gene expression. More specifically, this invention relates to a novel inducible gene expression system and methods of modulating gene expression in a host cell for applications such as gene therapy, large scale production of proteins and antibodies, cell-based high throughput screening assays, functional genomics and regulation of traits in transgenic plants and animals.

The present invention refers to methods for selectively recognizing a base pair in a DNA sequence by a polypeptide, to modified polypeptides which specifically recognize one or more base pairs in a DNA sequence and, to DNA which is modified so that it can be specifically recognized by a polypeptide and to uses of the polypeptide and DNA in specific DNA targeting as well as to methods of modulating expression of target genes in a cell.

Disclosed herein are methods and compositions for treating or preventing Huntington's Disease.

The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR / Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.

Some aspects of this disclosure provide strategies, systems, reagents, methods, and kits that are useful for the targeted editing of nucleic acids, including editing a nucleic acid encoding a mutant α-antitrypsin protein to correct a point mutation associated with a disease or disorder, e.g., with chronic obstructive pulmonary disease (COPD) disease. The methods provided are useful for correcting an α-antitrypsin point mutation within the genome of a cell or subject, e.g., within the human genome. In some embodiments, fusion proteins of Cas9 and nucleic acid editing enzymes or enzyme domains, e.g., deaminase domains, are provided. In some embodiments, reagents and kits for the generation of targeted nucleic acid editing proteins, e.g., fusion proteins of Cas9 and nucleic acid editing enzymes or domains, are provided.

The invention provides a method for making in vitro peptide expression libraries, and for the isolation of nucleotide sequences encoding peptides of interest, wherein the peptides or proteins are specifically associated with the DNA encoding them through non-covalent protein:DNA binding. The method describes ways of making the library itself, DNA molecules encoding the library and uses of the expression library.

The present invention relates to methods for developing engineered T-cells for immunotherapy and more specifically to methods for modifying T-cells by inactivating at immune checkpoint genes, preferably at least two selected from different pathways, to increase T-cell immune activity. This method involves the use of specific rare cutting endonucleases, in particular TALE-nucleases (TAL effector endonuclease) and polynucleotides encoding such polypeptides, to precisely target a selection of key genes in T-cells, which are available from donors or from culture of primary cells. The invention opens the way to highly efficient adoptive immunotherapy strategies for treating cancer and viral infections.

Methods and compositions for gene disruption, gene editing or gene stacking within a FAD2 loci by cleaving, in a site directed manner, a location in a FAD2 gene in a soybean cell, to generate a break in the FAD2 gene and then optionally integrating into the break a nucleic acid molecule of interest is disclosed.

The present invention provides genetically modified animals and cells comprising edited chromosomal sequences encoding proteins associated with MD. In particular, the animals or cells are generated using a zinc finger nuclease-mediated editing process. Also provided are methods of using the genetically modified animals or cells disclosed herein to study MD development and methods of assessing the effects of agents in genetically modified animals and cells comprising edited chromosomal sequences encoding proteins associated with MD.

The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR / Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.

The invention relates to meganuclease variants which cleave a DNA target sequence from the human Rhodopsin gene (RHO), to vectors encoding such variants, to a cell, an animal or a plant modified by such vectors and to the use of these meganuclease variants and products derived therefrom for genome therapy, ex vivo (gene cell therapy) and genome engineering including therapeutic applications and cell line engineering.

Provided are compositions and methods for the treatment of hemoglobinopathies such as thalassemias and sickle cell disease. Compositions and methods include one or more endonuclease(s) or endonuclease fusion protein(s), including one or more homing endonuclease(s) and / or homing endonuclease fusion protein(s) and / or CRISPR endonuclease(s) ad / or CRISPR endonuclease fusion protein(s): (a) to disrupt a Bcl11a coding region; (b) to disrupt a Bcl11a gene regulatory region; (c) to modify an adult human β-globin locus; (d) to disrupt a HbP silencing DNA regulatory element or pathway, such as a Bcl11a-regulated HbP silencing region; (e) to mutate one or more γ-globin gene promoter(s) to achieve increased expression of a γ-globin gene; (f) to mutate one or more δ-globin gene promoter(s) to achieve increased expression of a δ-globin gene; and / or (g) to correct one or more β-globin gene mutation(s).

Some aspects of this disclosure provide strategies, systems, reagents, methods, and kits that are useful for the targeted editing of nucleic acids, including editing a nucleic acid encoding a mutant PI3KCA protein to correct a point mutation associated with a disease or disorder, e.g., with a neoplastic disorder. The methods provided are useful for correcting a PI3KCA point mutation within the genome of a cell or subject, e.g., within the human genome. In some embodiments, fusion proteins of Cas9 and nucleic acid editing enzymes or enzyme domains, e.g., deaminase domains, are provided. In some embodiments, reagents and kits for the generation of targeted nucleic acid editing proteins, e.g., fusion proteins of Cas9 and nucleic acid editing enzymes or domains, are provided.

The present invention provides RNA-guided endonucleases, which are engineered for expression in eukaryotic cells or embryos, and methods of using the RNA-guided endonuclease for targeted genome modification in in eukaryotic cells or embryos. Also provided are fusion proteins, wherein each fusion protein comprises a CRISPR / Cas-like protein or fragment thereof and an effector domain. The effector domain can be a cleavage domain, an epigenetic modification domain, a transcriptional activation domain, or a transcriptional repressor domain. Also provided are methods for using the fusion proteins to modify a chromosomal sequence or regulate expression of a chromosomal sequence.