The present invention generally relates to systems, methods and compositions used for the control of gene expression involving sequence targeting, such as genome perturbation or gene-editing, that may use vector systems related to recombinases and Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and components thereof.

Compositions and methods are provided for genome modification of a target sequence in the genome of a plant or plant cell. The methods and compositions employ a guide RNA/Cas endonuclease system to provide an effective system for modifying or altering target sites within the genome of a plant, plant cell or seed. Also provided are compositions and methods employing a guide polynucleotide/Cas endonuclease system for genome modification of a nucleotide sequence in the genome of a cell or organism, for gene editing, and/or for inserting or deleting a polynucleotide of interest into or from the genome of a cell or organism. Once a genomic target site is identified, a variety of methods can be employed to further modify the target sites such that they contain a variety of polynucleotides of interest. Breeding methods and methods for selecting plants utilizing a two component RNA guide and Cas endonuclease system are also disclosed. Compositions and methods are also provided for editing a nucleotide sequence in the genome of a cell.

Provided herein are nucleic acid molecules that target the BCL11A enhancer functional regions, compositions comprising the nucleic acid molecules and methods for increasing fetal hemoglobin levels in a cell by disrupting BCL11A expression at the genomic level. Also provided herein are methods and compositions relating to the treatment of hemoglobinopathies by reinduction of fetal hemoglobin levels. In particular, the nucleic acid molecules target the +62, +58, and/or the +55 enhancer functional regions.

The present invention relates to methods for producing a non-human animal, such as an avian, comprising a targeted germline genetic modification, the method comprising: (i) delivering a programmable nuclease to sperm; (ii) fertilizing an ovum with the sperm, and (iii) generating the animal from the ovum, wherein the nuvlease introduces the genetic modification into DNA of the prem and/or the ovum.

Compositions and methods are provided for the inhibition, treatment and/or prevention of Huntington's disease and related disorders.

The present application provides materials and methods for treating a patient with a titin-based myopathy, particularly a titin-based cardiomyopathy, and/or other titinopathy. In addition, the present application provides materials and methods for editing the titin gene in a cell by genome editing.

A method of eliminating the risk of JCV activation in a subject undergoing immunosuppressive therapy, by administering an effective amount of a gene editing composition directed toward at least one target sequence in the JCV genome, cleaving the target sequence in the JCV genome, disrupting the JCV genome, eliminating the JCV infection, eliminating the risk of JCV activation, and treating the subject with an immunosuppressive therapy. A pharmaceutical composition including at least one isolated nucleic acid sequence encoding a CRISPR-associated endonuclease and at least one gRNA having a spacer sequence complementary to a target sequence in a JCV DNA, the isolated nucleic acid sequences being included in at least one expression vector. Pharmaceutical compositions including at least one isolated nucleic acid sequence encoding at least one TALEN, at least one ZFN, and gene editing composition of C2c1, C2c3, TevCas9, Archaea Cas9, CasY.1-CasY.6, CasX, or argonaute protein, which target at least one nucleotide sequence of the JCV genome.

Fusion constructs encoding RNase-H-like domain containing compositions are disclosed. Disclosed are also compositions and methods utilizing RNase-H-like domain containing compositions for the treatment of cancer. Also disclosed are the methods of making and using the RNase-H-like domain containing compositions in treating various diseases, conditions, and cancer.

Presented herein is a high-throughput (HTP) genomic engineering platform for improving the production of therapeutic proteins in Chinese hamster ovary (CHO) cells. The disclosed HTP genomic engineering platform is computationally driven and integrates molecular biology, automation, and advanced machine learning protocols. The platform utilizes a unique suite of HTP genetic engineering tools to explore the genomic landscape associated with therapeutic protein production pathways, in order to unravel the biological drivers and disentangle the uncharacterized genetic architecture responsible for optimizing therapeutic protein production in CHO cells.

Described herein are compositions and methods for treating Alzheimer's disease or dementia. The compositions include mammalian suppressor of taupathy 2 inhibitors (MSUT2). The MSUT2 inhibitors can be small interfering RNAs, guide RNAs, or small molecules. The methods include reducing accumulation of phosphorylated and aggregated human tau.