Abstract: Polymers synthesized by solid-phase synthesis are selectively released from a solid support by reversing the bias of spatially addressable electrodes. Change in the current and voltage direction at one or more of the spatially addressable electrodes changes the ionic environment which triggers cleavage of linkers that leads to release of the attached polymers. The spatially addressable electrodes may be implemented as CMOS inverters embedded in an integrated circuit (IC). The IC may contain an array of many thousands of spatially addressable electrodes. Control circuity may independently reverse the bias on any of the individual electrodes in the array. This provides fine-grained control of which polymers are released from the solid support. Examples of polymers that may be synthesized on this type of array include oligonucleotides and peptides.

Abstract: Methods of preparing nucleic acid libraries are provided. Aspects of the methods include producing one or more libraries, including e.g., expression libraries and/or immune cell receptor repertoire libraries, from double stranded complementary DNA (cDNA) generated through a template-switching reaction involving a RNA sample. In some aspects, the methods include preparing a library from a single cell and/or a library indexed at the single cell level. Compositions and kits for use in performing the methods are also provided.

Abstract: The present disclosure provides methods and systems for generation of compositions comprising two or more sets of molecules. Compositions herein may comprise sets of molecules of different types. Sets of molecules may be generated by attachment to supports. Different types of molecules may be used to generate a large number of unique molecules. One or more types of molecules may be used to identify one or more additional types of molecules. Compositions of the present disclosure may be used in, for example, nucleic acid sequencing.

Abstract: Provided herein are macromolecular structures comprising charged macromolecules. In particular, provided herein are synthetic neutrophil extracellular traps and uses thereof.

Abstract: Provided herein are methods and systems for screening a candidate agent to determine whether the candidate agent modulates an activity of cultured cells. Compositions for screening a candidate agent are also provided herein.

Abstract: The present invention relates to a method for analyzing a biological sample on a single cell level by compartmentalizing said sample using a grid and performing an optimized combinatorial indexing protocol within cells of the compartmentalized tissue while deducing cell-specific information regarding the cell identity and activity in the spatial context within the sample.

Abstract: A method of sample analysis is described comprising providing a sample comprising a plurality of endblocked polynucleotides, digesting the sample with one or more defined nucleic acid-directed endonuclease that targets a sequence of interest to produce a digested sample of polynucleotide fragments, wherein one or more of the fragments in the digested sample comprises: a sequence of interest and at least one ligatable end that has been generated by endonuclease cleavage; (c) enriching for fragments that contain the sequence of interest, wherein the one or more sequences of interest are enriched greater than 55 times, or greater than 750 times, their relative abundance in the sample; and (d) analyzing the enriched sample.

Abstract: The present disclosure relates to compositions of matter and assay methods used to screen for molecular dimerization events using a two-ribonucleoprotein complex signal boost assay. The compositions and methods provide a readout upon detection of dimerization of molecules and may be implemented in a high throughput manner using libraries of tens to hundreds to thousands of putative binding partners.

Abstract: Methods and compositions for performing highly sensitive in vitro assays to define substrate preferences and off-target sites of nucleic-acid binding, modifying, and cleaving agents.

Abstract: A method for sequencing a target polynucleotide includes detecting a first series of nucleotide incorporations complementary to at least a portion of the target polynucleotide. The first series of nucleotide incorporations forms a first complementary polynucleotide. The target nucleotide is secured to a substrate disposed in a sequencing zone of an assembly. The method further includes moving the substrate to which the target nucleotide is secured to a templating zone of the assembly; removing the first complementary polynucleotide when the substrate is disposed at the templating zone of the assembly, the target polynucleotide remaining secured to the substrate; following the removing, moving the substrate to which the target polynucleotide is secured to the sequencing zone; and detecting a second series of nucleotide incorporations complementary to at least a portion of the target polynucleotide, the second series of nucleotide incorporations forming a second complementary polynucleotide.

Abstract: The purpose of the present invention is to provide, for translation in a cell-free translation system, a novel translation system capable of synthesizing a peptide having therein consecutive non-proteinogenic amino acids. The present invention provides a tRNA containing the base sequence represented by SEQ ID NO: 1 and encoding a non-proteinogenic amino acid.

Abstract: This disclosure relates to compositions and methods for three-dimensional spatial profiling of analytes in a biological sample. The methods include use of a hydrogel comprising one or more polymers that include a phenol moiety, an azide moiety, or an alkyne moiety.

Abstract: Provided herein are methods and compositions for performing highly sensitive in vitro assays to define substrate preferences and off-target sites of nucleic-acid binding, modifying, and cleaving agents.

Abstract: Presented herein are techniques for indexing of nucleic acid, e.g., for use in conjunction with sequencing. The techniques include generating indexed nucleic acid fragments from an individual sample, whereby the index sequence incorporated into each index site of the nucleic acid fragment is selected from a plurality of distinguishable of index sequences and such that the population of generated nucleic acid fragments represents each index sequence from the plurality. In this manner, the generated indexed nucleic acid fragments from a single sample are indexed with a diverse mix of index sequences that reduce misassignment due to index read errors associated with low sequence diversity.

Abstract: A method for detecting the binding of a chromatin-associated factor of interest to a sequence of chromatin DNA in a cell, including: contacting a permeabilized cell or nucleus with a specific binding agent that specifically recognizes the chromatin-associated factor of interest, wherein the specific binding agent is linked to a nuclease that is inactive or an activatable transposome; activating the nuclease or transposase, thereby excising the sequence of chromatin DNA bound to the chromatin-associated factor of interest; isolating the excised DNA; and determining the sequence of the excised DNA, thereby detecting binding of a chromatin-associated factor of interest to a sequence of chromatin DNA in the cell.

Abstract: Provided herein are methods and compositions for performing highly sensitive in vitro assays to define substrate preferences and off-target sites of nucleic-acid binding, modifying, and cleaving agents.

Abstract: The present invention relates to a technique for genomic library screening and provides a method for separating, capturing, analyzing, and retrieving cells and cell products by using a microstructure that can be preferentially applied to the field of antibody engineering for the development of new therapeutic antibodies and can be extensively applied to multiple genetic/phenotypic analysis of various biochemical molecules, for example, in the field of protein engineering and metabolic engineering.