Abstract: Described herein are method for generating a vector for editing a cell. The method comprises ligating into a vector that encodes a portion of a gRNA a cassette comprising at least one editing cassette, a promoter, and a gene encoding another portion of the gRNA. Upon ligation, the portion of the gRNA from the editing cassette and the other portion of the gRNA are ligated and form a functional gRNA.

Abstract: The present invention relates to an engineered Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) system comprising engineered dual guide nucleic acids (e.g., RNAs) capable of activating a CRISPR-Associated (Cas) nuclease, such as a type V-A Cas nuclease. Also provided are methods of targeting, editing, and/or modifying a nucleic acid using the engineered CRISPR system, and compositions and cells comprising the engineered CRISPR system.

Abstract: Embodiments disclosed herein include novel nucleic acid-guided nucleases, novel guide nucleic acids, and novel targetable nuclease systems, and methods of use. In some embodiments, engineered non-naturally occurring nucleic acid-guided nucleases, can be used with known guide nucleic acids in a targetable nuclease system. In certain embodiments, targetable nuclease systems can be used to edit targeted genomes of humans and other species. In some embodiments, methods include, but are not limited to, recursive genetic engineering and trackable genetic engineering methods.

Abstract: Embodiments disclosed herein include novel nucleic acid-guided nucleases, novel guide nucleic acids, and novel targetable nuclease systems, and methods of use. In some embodiments, engineered non-naturally occurring nucleic acid-guided nucleases, can be used with known guide nucleic acids in a targetable nuclease system. In certain embodiments, targetable nuclease systems can be used to edit targeted genomes of humans and other species. In some embodiments, methods include, but are not limited to, recursive genetic engineering and trackable genetic engineering methods.

Abstract: Described herein are method for generating a vector for editing a cell. The method comprises ligating into a vector that encodes a portion of a gRNA a cassette comprising at least one editing cassette, a promoter, and a gene encoding another portion of the gRNA. Upon ligation, the portion of the gRNA from the editing cassette and the other portion of the gRNA are ligated and form a functional gRNA.

Abstract: The present invention relates to an engineered Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) system comprising engineered dual guide nucleic acids (e.g., RNAs) capable of activating a CRISPR-Associated (Cas) nuclease, such as a type V-A Cas nuclease. Also provided are methods of targeting, editing, and/or modifying a nucleic acid using the engineered CRISPR system, and compositions and cells comprising the engineered CRISPR system.

Abstract: Provided herein are methods and composition for trackable genetic variant libraries. Further provided herein are methods and compositions for recursive engineering. Further provided herein are methods and compositions for multiplex engineering. Further provided herein are methods and compositions for enriching for editing and trackable engineered sequences and cells using nucleic acid-guided nucleases.

Abstract: Described herein are methods and vectors for rational, multiplexed manipulation of chromosomes within open reading frames (e.g., in protein libraries) or any segment of a chromosome in a cell or population of cells, in which various CRISPR systems are used.

Abstract: Disclosed herein are nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Disclosed herein are engineered non-naturally occurring nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Targetable nuclease systems can be used to edit genetic targets, including recursive genetic engineering and trackable genetic engineering methods.

Abstract: Described herein are molecules for editing a cell. The molecules described herein generally comprise the following covalently-linked components and a nucleic acid encoding a guide RNA (gRNA) sequence targeting a target region in a cell and a region homologous to the target region comprising a change in sequence relative to the target region.

Abstract: The present invention relates to engineered Clustered Regularly Interspaced Short Palindromic Repeals (CRISPR) systems and corresponding guide RNAs that target specific nucleotide sequences at certain gene loci in the human genome. Also provided are methods of targeting, editing, and/or modifying of the human genes using the engineered CRISPR systems, and compositions and cells comprising the engineered CRISPR systems.

Abstract: Provided herein are methods and composition for trackable genetic variant libraries. Further provided herein are methods and compositions for recursive engineering. Further provided herein are methods and compositions for multiplex engineering. Further provided herein are methods and compositions for enriching for editing and trackable engineered sequences and cells using nucleic acid-guided nucleases.

Abstract: Disclosed herein are nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Disclosed herein are engineered non-naturally occurring nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Targetable nuclease systems can be used to edit genetic targets, including recursive genetic engineering and trackable genetic engineering methods.

Abstract: Described herein are molecules for editing a cell. The molecules described herein generally comprise the following covalently-linked components and a nucleic acid encoding a guide RNA (gRNA) sequence targeting a target region in a cell and a region homologous to the target region comprising a change in sequence relative to the target region.

Abstract: Disclosed herein are nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Disclosed herein are engineered non-naturally occurring nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Targetable nuclease systems can be used to edit genetic targets, including recursive genetic engineering and trackable genetic engineering methods.

Abstract: Disclosed herein are nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Disclosed herein are engineered non-naturally occurring nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Targetable nuclease systems can be used to edit genetic targets, including recursive genetic engineering and trackable genetic engineering methods.

Abstract: Described herein are synthetic oligonucleotides for editing a cell. The oligonucleotides described herein comprise the following covalently-linked components: (i) a nucleic acid encoding a guide RNA (gRNA) sequence targeting a target region in a cell; (ii) a region homologous to the target region comprising a change in sequence relative to the target region; and (iii) a site conferring immunity to nuclease-mediated editing.

Abstract: Disclosed herein are nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Disclosed herein are engineered non-naturally occurring nucleic acid-guided nucleases, guide nucleic acids, and targetable nuclease systems, and methods of use. Targetable nuclease systems can be used to edit genetic targets, including recursive genetic engineering and trackable genetic engineering methods.

Abstract: The present invention relates to an engineered Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) system comprising engineered dual guide nucleic acids (e.g., RNAs) capable of activating a CRISPR-Associated (Cas) nuclease, such as a type V-A Cas nuclease. Also provided are methods of targeting, editing, and/or modifying a nucleic acid using the engineered CRISPR system, and compositions and cells comprising the engineered CRISPR system.

Abstract: Described herein are synthetic oligonucleotides for editing a cell. The oligonucleotides described herein comprise the following covalently-linked components: (i) a nucleic acid encoding a guide RNA (gRNA) sequence targeting a target region in a cell; (ii) a region homologous to the target region comprising a change in sequence relative to the target region; and (iii) a site conferring immunity to nuclease-mediated editing.