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.

The invention relates to new methods for synthesising polynucleotide molecules according to a predefined nucleotide sequence. The invention also relates to methods for the assembly of synthetic polynucleotides following synthesis, as well as systems and kits for performing the synthesis and/or assembly methods.

The invention provides methods for the synthesis of long oligonucleotides, genes and gene fragments. The methods include the manufacture of genes or gene fragments that can be then inserted into a variety of vectors.

Provided herein are T7 RNA polymerase variants (T7 RNAP variants) having increased RNA polymerase activity and/or thermal stability, and methods of use thereof.

Provided are compositions and methods of making a guide nucleic acids (gNAs), methods of using gNAs, and ligation free methods of preparing libraries of nucleic acids for downstream applications such as high-throughput sequencing.

This document relates to methods and materials for assessed, monitored, and/or treated mammals (e.g., humans) having cancer. For example, methods and materials for identifying a mammal as having cancer (e.g., a localized cancer) are provided. For example, methods and materials for assessing, monitoring, and/or treating a mammal having cancer are provided.

Provided herein are methods for generating circular nucleic acid molecules and circular nucleic acid libraries. The methods can be used to generate clonal populations of target nucleic acid molecules for downstream applications such as sequencing.

Provided are methods and systems useful for screening large libraries of effector molecules. Such methods and systems are particularly useful in microfluidic systems and devices. The methods and systems provided herein utilize encoded effectors to screen large libraries of effectors.

Provided are methods of adding adapters to nucleic acids. The methods include combining in a reaction mixture a template ribonucleic acid (RNA), a template switch oligonucleotide including a 3′ hybridization domain and a sequencing platform adapter construct, a polymerase, and dNTPs. The reaction mixture components are combined under conditions sufficient to produce a product nucleic acid that includes the template RNA and the template switch oligonucleotide each hybridized to adjacent regions of a single product nucleic acid that includes a region polymerized from the dNTPs by the polymerase. Aspects of the invention further include compositions and kits.

Disclosed is a method of functional genomics determination including transducing a cell population with a set of nucleic acid molecules including a pooled library of genomic perturbagens to integrate multiple perturbagen cassettes into the genome. A phenotype of individual cells is determined and single cells of the population with targeted phenotypes are individually sorted into a set of compartments. Each compartment includes a forward primer with a nucleic acid sequence (NAS) that specifically binds a common nucleic acid sequence on the nucleic acid molecules and a compartment (cell)-specific nucleic acid barcode. Also included is a reverse primer with a NAS that specifically binds a common NAS on the nucleic acid molecules comprising a pooled library of genomic perturbagens. The genome-integrated perturbagen cassettes are create amplicons which are pooled and sequences determined. This method can be applied to other genome-level single-cell applications—immune receptor profiling, targeted DNA/RNA sequencing, and metagenomics.