Abstract: The present invention relates to methods of storing data using one or more nucleic acids.

Abstract: Methods of making a three-dimensional matrix of nucleic acids within a cell is provided.

Abstract: This invention provides methods of altering a cell including providing the cell with a nucleic acid sequence encoding a Cas1 protein and/or a Cas2 protein of a CRISPR adaptation system, providing the cell with a CRISPR array nucleic acid sequence including a leader sequence and at least one repeat sequence, wherein the cell expresses the Cas1 protein and/or the Cas2 protein and wherein the CRISPR array nucleic acid sequence is within genomic DNA of the cell or on a plasmid. Also provided are methods and systems for nucleic acid storage and in vivo molecular recordings of events into a cell.

Abstract: The technology described herein provides viral capsid polypeptides bearing mutations that alters tissue tropism of a virus comprising the viral capsid polypeptide. In various embodiments, tissue tropisim to the heart, kidney, liver, lung, spleen, or blood is altered.

Abstract: A method of altering a eukaryotic cell is provided including transfecting the eukaryotic cell with a nucleic acid encoding RNA complementary to genomic DNA of the eukaryotic cell, transfecting the eukaryotic cell with a nucleic acid encoding an enzyme that interacts with the RNA and cleaves the genomic DNA in a site specific manner, wherein the cell expresses the RNA and the enzyme, the RNA binds to complementary genomic DNA and the enzyme cleaves the genomic DNA in a site specific manner.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: A method of altering cells with a pooled library of bar-coded nucleic acids is provided including combining a group of cells with the pooled library of bar coded nucleic acids under conditions which promote uptake of one or more barcoded nucleic acids from the pooled library into the cells, analyzing an individual cell for phenotype, sequencing the individual cell to identify the one or more barcoded nucleic acids from the pooled library, and correlating the phenotype for the individual cell with the one or more barcoded nucleic acids from the pooled library.

Abstract: A method for making a polynucleotide is provided that includes (a) delivering one or more reaction reagents including an error prone or template independent DNA polymerase, cations and a selected nucleotide to a reaction site including an initiator sequence having a terminal nucleotide for a time period and under conditions sufficient to covalently add a desired number of the selected nucleotide to the terminal nucleotide at the 3? end of the initiator such that the selected nucleotide becomes a terminal nucleotide, moving cations away from the initiator sequence using an anion toroidal vortex to inhibit covalent addition of the selected nucleotide by the error prone or template independent DNA polymerase, removing the reaction reagents from the reaction site, and (b) repeating step (a) until the polynucleotide is formed.

Abstract: Methods and compositions of altering a eukaryotic cell are described including providing to the eukaryotic cell a guide DNA sequence complementary to a target nucleic acid sequence, providing to the eukaryotic cell an Ago enzyme or a nuclease null Ago protein that interacts with the guide DNA sequence for DNA-guided gene editing and regulation of the target nucleic acid sequence in a site specific manner.

Abstract: Provided herein are pluripotent stem cells comprising particular combinations of transcription factor for the production of oligodendrocyte progenitor cells (OPCs). Also provided herein are methods of producing the pluripotent stem cells and methods of using the pluripotent stem cells to produce (OPCs) and oligodendrocytes.

Abstract: Methods of making a three-dimensional matrix of nucleic acids within a cell is provided.

Abstract: Methods of simultaneously excising large nucleic acid sequences from a target nucleic acid and inserting large foreign nucleic sequences into the target nucleic acid sequence using DNA binding protein nucleases are described.

Abstract: The disclosure provides methods for making a polynucleotide wherein the addition of nucleotides can be physically, chemically and/or enzymatically controlled. The methods include combining a selected nucleotide, cations, an error prone or template independent DNA polymerase at a reaction site including an initiator sequence attached thereto and having a 3? terminal nucleotide, wherein the reaction reagents can be modulated and under conditions that allow covalent addition of one or more of a selected nucleotide to the 3? terminal nucleotide such that the selected nucleotide becomes a 3? terminal nucleotide, and repeating the addition step until the polynucleotide is formed.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: Methods of detecting, probing, mapping and directed sequencing of target nucleic acids are provided using a guide RNA and a Cas9 protein. Methods for detecting the binding of the guide RNA/Cas9 complex to a target nucleic acid where the guide RNA includes a 3? tail sequence that can hybridize to a probe are provided. Methods for detecting the binding of the guide RNA/Cas9 complex to a target nucleic acid where the complex is physically detected are provided.

Abstract: Methods of making a three-dimensional matrix of nucleic acids within a cell is provided.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: Compositions and methods for making a plurality of probes for analyzing a plurality of nucleic acid samples are provided. Compositions and methods for analyzing a plurality of nucleic acid samples to obtain sequence information in each nucleic acid sample are also provided.

Abstract: The present invention generally relates to droplets and/or emulsions, such as multiple emulsions. In some cases, the droplets and/or emulsions may be used in assays, and in certain embodiments, the droplet or emulsion may be hardened to form a gel. In some aspects, a heterogeneous assay can be performed using a gel. For example, a droplet may be hardened to form a gel, where the droplet contains a cell, DNA, or other suitable species. The gel may be exposed to a reactant, and the reactant may interact with the gel and/or with the cell, DNA, etc., in some fashion. For example, the reactant may diffuse through the gel, or the hardened particle may liquefy to form a liquid state, allowing the reactant to interact with the cell. As a specific example, DNA contained within a gel particle may be subjected to PCR (polymerase chain reaction) amplification, e.g., by using PCR primers able to bind to the gel as it forms. As the DNA is amplified using PCR, some of the DNA will be bound to the gel via the PCR primer.

Abstract: Provided herein, in some embodiments, are methods and compositions for identifying combinations of transcription factors, for example, those involved in cell type conversion processes, such as cell differentiation.