Abstract: Provided herein are engineered Class 2, Type V nucleases and guide RNAs useful for the editing of target nucleic acids. Also provided are methods of making and using such variants to modify nucleic acids.

Abstract: Provided herein are compositions and methods for use of self-inactivating recombinant vectors (SIRV) encoding Class 2 Type V and guide ribonucleic acid (gRNA) sequences useful for nucleic acid sequence editing, and including self-inactivating components. The SIRV may be delivered to cells as part of an AAV vector to target a gene of interest.

Abstract: An example of a kit includes a flow cell assembly. The flow cell assembly includes a reaction chamber, a temperature controlled flow channel in selective fluid communication with an inlet of the reaction chamber, and a filter positioned in the temperature controlled flow channel. The reaction chamber includes depressions separated by interstitial regions and capture primers attached within each of the depressions. The filter is i) to block concentrated biological sample-polymer complexes generated in the temperature controlled flow channel at a first temperature, and ii) to allow passage of concentrated biological sample and polymer released from the complexes in the temperature controlled flow channel at a second temperature.

Abstract: Provided herein are Class 2 Type V systems comprising nucleases, guide nucleic acids (gNA), and optionally donor template nucleic acids useful in the modification of a C9orf72 gene. The systems are also useful for introduction into cells, for example eukaryotic cells having mutations or duplications in the C9orf72 gene. Also provided are methods of using such systems to modify cells having such mutations or duplications.

Abstract: Provided herein are reference guide nucleic acid scaffolds and variants of reference guide nucleic acid scaffolds capable of binding one or more engineered proteins comprising a RuvC cleavage domain. In some embodiments, the variants of the reference guide nucleic acid scaffolds comprise at least one modification compared to the reference guide nucleic acid scaffold sequences and exhibit one or more improved characteristics compared to the reference guide nucleic acid scaffolds.

Abstract: The disclosure relates to gene repressor systems comprising catalytically-dead Class 2 CRISPR proteins and one or more transcription repressor domains linked to the catalytically-dead Class 2 CRISPR protein as a fusion protein, as well as a guide ribonucleic acid (gRNA); and methods of making and using same.

Abstract: Provided herein are delivery particle systems (XDP) useful for the delivery of payloads of any type. In some embodiments, a XDP particle system with tropism for target cells of interest is used to deliver CRISPR/Cas polypeptides (e.g., CasX proteins) and guide nucleic acids (gNA), for the modification of nucleic acids in target cells. Also provided are methods of making and using such XDP to modify the nucleic acids in such cells.

Abstract: Provided herein are gene repressor systems comprising fusion proteins, such as fusion proteins comprising a DNA binding domain such as a TALE, zinc finger or catalytically-dead CRISPR protein and guide nucleic acid (gRNA), which are useful in the repression of a proprotein convertase subtilisin kexin Type 9 (PCSK9) gene. Also provided are methods of using such systems to repress transcription of PCSK9.

Abstract: Provided herein are gene repressor systems comprising fusion proteins, such as fusion proteins comprising a DNA binding domain such as a TALE, zinc finger or catalytically-dead CRISPR protein and guide nucleic acid (gRNA), which are useful in the repression of a proprotein convertase subtilisin/kexin Type 9 (PCSK9) gene. Also provided are methods of using such systems to repress transcription of PCSK9.

Abstract: Provided herein are CasX:gNA systems comprising CasX polypeptides, guide nucleic acids (gNA), and optionally donor template nucleic acids useful in the modification of a SOD1 gene. The systems are also useful for introduction into cells, for example eukaryotic cells having mutations in the SOD1 protein or the SOD1 regulatory element. Also provided are methods of using such CasX:gNA systems to modify cells having such mutations and utility in methods of treatment of a subject with a SOD1-related disease.

Abstract: Provided herein are Class 2 Type V CRISPR systems comprising CRISPR-Cas polypeptides, (e.g., CasX:gRNA systems comprising CasX polypeptides), guide nucleic acids (gRNA), and optionally donor template nucleic acids, useful in the modification of a PTBP1 gene. The systems are also useful in methods for reprogramming certain eukaryotic cells into functional neurons by the knocking down or knocking out the PTBP1 gene in those cells. Also provided are methods of using such systems in methods of treatment of a subject with a PTBP1-related disease.

Abstract: Provided herein polynucleotides configured for incorporation into recombinant adeno-associated virus (AAV) vectors. The polynucleotides encode for CRISPR proteins, gRNA, and ancillary components of AAV vectors useful in the modification of target nucleic acids. The systems are also useful for introduction into cells, for example eukaryotic cells having mutations in the target nucleic acid of a gene. Also provided are methods of using such AAV vectors to modify cells having such mutations.

Abstract: Provided herein are systems comprising Class 2, Type V CRISPR polypeptides, guide nucleic acids (gNA), and optionally donor template nucleic acids useful in the modification of a BCL11A gene. The systems are also useful for the modification of cells in subjects with a hemoglobinopathy-related disease. Also provided are methods of treatment of subjects having a hemoglobinopathy-related disease by administration of the systems or nucleic acids encoding such systems that target the BCL11A gene in such subjects.

Abstract: Provided herein are engineered Class 2, Type V nucleases and guide RNAs useful for the editing of target nucleic acids. Also provided are methods of making and using such variants to modify nucleic acids.

Abstract: According to example embodiments, there is provided a handheld mobile computing device, for example a smartphone, includes a computing system, a motion detector, a global positioning system receiver, and a touch-screen display to display a user interface and detect user selections from the user interface. A usage goal-setting user interface includes a dashboard and a plurality of user-selectable menu options, the usage goal-setting user interface including display elements allowing a user to enter one or more parameters respecting the goals including physical activity usage goals, social activity usage goals, educational usage goals, and mindfulness usage goals.

Abstract: Provided herein are delivery particle systems (XDP) useful for the delivery of payloads of any type. In some embodiments, a XDP particle system with tropism for target cells of interest is used to deliver CRISPR/Cas polypeptides (e.g., CasX proteins) and guide nucleic acids (gNA), for the modification of nucleic acids in target cells. Also provided are methods of making and using such XDP to modify the nucleic acids in such cells.

Abstract: Provided herein are systems comprising Class2, Type V CRISPR polypeptides, guide nucleic acids (gNA), and optionally donor template nucleic acids useful in the modification of a PCSK9 gene. The systems are also useful for introduction into cells, for example eukaryotic cells having mutations in the PCSK9 gene. Also provided are methods of using such CasX:gNA systems to modify cells having such mutations.

Abstract: Provided herein are reference guide nucleic acid scaffolds and variants of reference guide nucleic acid scaffolds capable of binding one or more engineered proteins comprising a RuvC cleavage domain. In some embodiments, the variants of the reference guide nucleic acid scaffolds comprise at least one modification compared to the reference guide nucleic acid scaffold sequences and exhibit one or more improved characteristics compared to the reference guide nucleic acid scaffolds.

Abstract: Provided herein are CasX:gNA systems comprising CasX polypeptides, guide nucleic acids (gNA), and optionally donor template nucleic acids useful in the modification of a SOD1 gene. The systems are also useful for introduction into cells, for example eukaryotic cells having mutations in the SOD1 protein or the SOD1 regulatory element. Also provided are methods of using such CasX:gNA systems to modify cells having such mutations and utility in methods of treatment of a subject with a SOD1-related disease.

Abstract: Provided herein are CasX:gNA systems, and compositions and methods relating thereto, the systems comprising CasX proteins, guide nucleic acids (gNAs), and optionally donor template nucleic acids useful for the modification cell genes encoding proteins involved in antigen processing, antigen presentation, antigen recognition, and/or antigen response, as well as methods of producing and using populations of cells comprising these modified genes. In some embodiments, the modified cells further express chimeric antigen receptors (CAR) or engineered T cell receptors (TCR). Such systems are useful for preparing cells for immunotherapy.