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 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.

The present invention provides methods for preparing optimized DNA sequences as templates for in vitro transcription of mRNA. These DNA sequences are optimized to avoid premature termination of transcription by RNA polymerase. The invention also provides methods for preparing optimized DNA sequences that include one or more termination signal at their 3 end to reduce or prevent non-templated runoff transcription.

The present disclosure relates to DNA-encoded and affinity-tagged masked warhead installation compounds and use thereof in the synthesis of electrophilic warhead DNA-Encoded Libraries (eDEL), including substituted and unsubstituted acrylamide warheads, which can be purified from unreacted library intermediates and byproducts.

There is disclosed a process for in vitro synthesis and assembly of long, gene-length polynucleotides based upon assembly of multiple shorter oligonucleotides synthesized in situ on a microarray platform. Specifically, there is disclosed a process for in situ synthesis of oligonucleotide fragments on a solid phase microarray platform and subsequent, on device assembly of larger polynucleotides composed of a plurality of shorter oligonucleotide fragments.

The present invention provides methods, compositions and kits for targeted nucleic acid sequence enrichment in a nucleic acid sample and for high efficiency nucleic acid library generation for next generation sequencing (NGS). Specifically, the methods, compositions and kits provided herein are useful for the production and capture of amplification-ready, target-specific and strand-specific regions of interest from nucleic acid samples containing complex DNA.

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.

Provided herein are methods of selective screening. In addition, various targeting proteins and sequences, as well as methods of their use, are also provided.

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.

Methods and systems for sample preparation techniques that allow amplification (e.g., whole genome amplification) and sequencing of chromatin accessible regions of single cells are provided. The methods and systems generally operate by forming or providing partitions (e.g., droplets) including a single biological particle and a single bead comprising a barcoded oligonucleotide. The preparation of barcoded next-generation sequencing libraries prepared from a single cell is facilitated by the transposon-mediated transposition and fragmentation of a target nucleic acid sequence. The methods and systems may be configured to allow the implementation of single-operation or multi-operation chemical and/or biochemical processing within the partitions.