Embodiments of a method and/or system, such as for preparation of a normalized library for sequencing such as next-generation sequencing, can include one or more of: generating one or more normalized amplicon libraries; generating one or more normalized microbial community-associated libraries; and/or generating one or more normalized combined sequence libraries associated with amplicon-associated sequencing and microbial community-associated sequencing.

A composition and method for controlled in vitro fragmentation of nucleic acids. A transposase forms catalytically active complexes with a modified transposon end that contains within its end sequence degenerate, apurinic/apyrimidinic sites, nicks, or nucleotide gaps, to fragment or shear a target nucleic acid sample in a controlled process. This method yields desired average nucleic acid fragment sizes. The inventive composition and method may be applied for generation of DNA fragments containing shortened transposon end sequences to facilitate subsequent reactions, for production of asymmetrically tailed DNA fragments, etc.

Provided herein is a method of sequencing hydroxymethyated cell-free DNA. In some embodiments, the method comprises adding an affinity tag to only hydroxymethyated DNA molecules in a sample of cfDNA, enriching for the DNA molecules that are tagged with the affinity tag; and sequencing the enriched DNA molecules.

Chemical synthesizer systems and methods for operating the same. One method includes receiving a first queue of instructions including a plurality of delivery instructions for operating a delivery assembly with respect to a plurality of synthesis plates and a plurality of vacuum instructions, grouped in a plurality of vacuum sections, for operating a vacuum assembly with respect to the plurality of synthesis plates. The method also includes sequentially processing each instruction included in the first queue of instructions by (i) executing the instruction when the instruction is one of the plurality of delivery instructions and (ii) moving, when the instruction is one of the plurality of vacuum instructions, one of the plurality of vacuum sections including the instruction to a second queue of instructions and executing instructions included in the second queue of instruction in parallel with instructions included in the first queue of instructions.

Chemical synthesizer systems and methods for operating the same. One method includes receiving a first queue of instructions including a plurality of delivery instructions for operating a delivery assembly with respect to a plurality of synthesis plates and a plurality of vacuum instructions, grouped in a plurality of vacuum sections, for operating a vacuum assembly with respect to the plurality of synthesis plates. The method also includes sequentially processing each instruction included in the first queue of instructions by (i) executing the instruction when the instruction is one of the plurality of delivery instructions and (ii) moving, when the instruction is one of the plurality of vacuum instructions, one of the plurality of vacuum sections including the instruction to a second queue of instructions and executing instructions included in the second queue of instruction in parallel with instructions included in the first queue of instructions.

The present disclosure generally relates to devices, compositions and methods for designing and producing nucleic acid molecules and the production of encoded proteins using these nucleic acid molecules. In some aspect, the disclosure relates to automation for the in vitro generation of coding DNA molecules, the in vitro transcription of these DNA molecules to generate protein coding RNA molecules, and the in vitro translation of these protein coding RNA molecules to produce proteins.

The present disclosure generally relates to devices, compositions and methods for designing and producing nucleic acid molecules and the production of encoded proteins using these nucleic acid molecules. In some aspect, the disclosure relates to automation for the in vitro generation of coding DNA molecules, the in vitro transcription of these DNA molecules to generate protein coding RNA molecules, and the in vitro translation of these protein coding RNA molecules to produce proteins.

Disclosed herein include systems, methods, compositions, and kits for whole transcriptome analysis (WTA) with random priming and extension (RPE). The RPE-based WTA method can comprise hybridizing random primers with a plurality of first strand barcoded polynucleotides associated with a solid support and extending the random primers to generate a plurality of extension products. The method can comprise amplifying the plurality of extension products to generate a sequencing library.

Disclosed herein include systems, methods, compositions, and kits for whole transcriptome analysis (WTA) with random priming and extension (RPE). The RPE-based WTA method can comprise hybridizing random primers with a plurality of first strand barcoded polynucleotides associated with a solid support and extending the random primers to generate a plurality of extension products. The method can comprise amplifying the plurality of extension products to generate a sequencing library.

The present invention relates to the preparation of a compound library comprising the following steps: i. Having available at least two different compounds each comprising at least a dioxaborolane or dioxaborinane ring. In said compounds: the boron of the dioxaborolane or dioxaborinane ring is directly linked to a carbon atom of a hydrocarbon radical; at least one carbon atom of the dioxaborolane or dioxaborinane ring is monosubstituted, the other carbon atoms of the dioxaborolane or dioxaborinane ring being non-substituted or monosubstituted; in at least two compounds, the hydrocarbon radicals linked to the boron are different; in at least two compounds, the substituents carried by at least one of the carbon atoms of the dioxaborolane or dioxaborinane rings are different and/or the size of the boronic ester ring is different; ii. Reacting the compounds of step (i.) and forming, by a boronic ester metathesis reaction, the library comprising at least four different compounds. The present invention also relates to a compound library.