The invention is a novel method of sequencing nucleic acids involving making and sequencing a library of double stranded target nucleic acids containing a linear partially single-stranded adaptor.

Disclosed are methods, devices, kits, components, and compositions for detecting a target molecule in a test sample using a cell-free protein synthesis (CFPS) reaction. The methods, devices, kits, components, and compositions may be utilized for detecting target molecules which may include small molecules and/or metabolites of small molecules. The methods, devices, kits, components, and compositions employ one or more transcription templates that encode and conditionally express one or more exogenous RNA polymerases in the presence of the target molecule. The expressed RNA polymerases in turn induce expression of one or more reporter molecules from transcription templates comprising promoters for the RNA polymerases, thereby amplifying an output signal that is generated in the presence of a detected target molecule.

Disclosed herein are methods for the generation of highly accurate nucleic acid libraries encoding for predetermined variants of a nucleic acid sequence. The nucleic acid sequence may encode for all or part of a TCR or a TCR-binding antigen. The degree of variation may be complete, resulting in a saturated variant library, or less than complete, resulting in a non-saturating library of variants. The variant nucleic acid libraries described herein may designed for further processing by transcription or translation. The variant nucleic acid libraries described herein may be designed to generate variant RNA, DNA and/or protein populations. Further provided herein are method for identifying variant species with increased or decreased activities, with applications in regulating biological functions and the design of therapeutics for treatment or reduction of a disease, such as cancer.

The present disclosure relates generally to polypeptides derived from marsupial adeno-associated vims (AAV). The disclosure is also related to nucleic acid molecules encoding the polypeptides, and vectors comprising the nucleic acid molecules, and AAV vectors comprising the polypeptides. The disclosure also relates to uses of the nucleic acid molecules, polypeptides and AAV vectors, such as for capsid diversification.

Disclosed herein are methods for the generation of nucleic acid libraries encoding for gRNA sequences. The gRNAs encoded by methods described herein may be single or double gRNA sequences. Methods described provide for the generation of gRNA libraries, as a DNA precursor or as a RNA transcription product, with improved accuracy and uniformity.

Nucleic acid-guided nuclease editing in mammalian cells may include passaging mammalian cells, in an automated closed cell editing instrument, into smaller aggregates when the aggregates exceed 50-300 microns in size. A library of viral particles may be delivered to the mammalian cells at a multiplicity of infection such that each mammalian cell receives one or no viral particle. The library may include viral vectors with an editing cassette including a pair of gRNA coding sequence and donor DNA. Conditions may be provided to allow a viral vector of the viral vectors to integrate into the mammalian cells. Enriching for mammalian cells may be done with an integrated viral vector. A nucleic acid-guided nuclease or nuclease fusion or a coding sequence for a nucleic acid-guided nuclease or nuclease fusion may be delivered to the enriched mammalian cells and conditions may be provided to allow editing in the mammalian cells.

Provided are methods for preparing a library of target nucleic acid sequences, as well as compositions and uses therefor. Methods comprise contacting a nucleic acid sample with a plurality of adaptors capable of amplification of one or more target nucleic acid sequences under conditions wherein the target nucleic acid(s) undergo a first amplification; digesting the resulting first amplification products; repairing the digested target amplicons; and amplifying the repaired products in a second amplification, thereby producing a library of target nucleic acid sequence. Each of the plurality of adaptor compositions comprise a handle and a targeted nucleic acid sequence and optionally one or more tag sequences. Provided methods may be carried out in a single, addition only workflow reaction, allowing for rapid production of highly multiplexed targeted libraries, optionally including unique tag sequences. Resulting library compositions are useful for a variety of applications, including sequencing applications.

Provided herein are compositions, devices, systems and methods for generation and use of biomolecule-based information for storage. Further provided are devices-having addressable electrodes controlling polynucleotide synthesis (deprotection, extension, or cleavage, etc.) The compositions, devices, systems and methods described herein provide improved storage, density, and retrieval of biomolecule-based information.

The present invention is concerned with compositions and methods for improving the rate of correct sample identification in indexed nucleic acid library preparations for multiplex next generation sequencing by blocking the 3′ ends of pooled indexed polynucleotides from multiple samples prior to amplification and sequencing.

Provided herein are compositions and methods for the incorporation of unnatural nucleotides using mutant polymerases, such as reverse transcriptases. Further provided herein are methods of detection and sequencing of polynucleotide sequences. In some aspects, the compositions and methods are used enhance the efficiency and speed of detecting nucleotide bases. The methods and compositions described herein may further reduce time, cost, or scale of devices for next generation sequencing platforms.