Abstract:
An integrated end-to-end system for large-scale, high-quality nucleic acid sequencing having a nucleic acid extraction module, a library preparation module, a nucleic acid sequencing module, and a data analysis module reversibly integrated with one another and having components that are physically loosely-coupled within such system and reversibly integrated for sequence interrogation and analysis. This system is fully automated from sample to data output. A workflow management system is integrated across all system components and provides an intuitive user interface for managing system operations.
Abstract:
Presented herein are methods and compositions for analyzing rare nucleic acid species. Some methods presented herein use DNA reassociation kinetics following thermal denaturation to define populations of nucleic acid sequences, e.g., highly abundant (e.g., cDNA from rRNA), moderately abundant, and less abundant or rare sequences (e.g., cDNA from mRNA).
Abstract:
The present disclosure provides methods of sequencing polynucleotides and compounds, compositions useful for sequencing of polynucleotides. The chemical compounds include nucleotides and their analogs which possess a sugar moiety comprising a cleavable chemical group capping the 3'-OH group and a base that is attached to a detectable label through a cleavable linker comprising a disulfide bond. In addition, both the disulfide bond and the cleavable chemical group are cleavable by a chemical reagent. Furthermore, after the disulfide bond is cleaved by the chemical reagent, there is no free thiol group linked to the base of the nucleotides.
Abstract:
Aspects of the present disclosure are directed to nucleic acid primers, compositions and kits containing the primers, and methods for using the primers in applications requiring, for example, single-molecule sensitivity, single-nucleotide specificity, and/or multiplexed amplification.
Abstract:
Provided herein are methods that comprise providing polymer chains comprising a plurality of reactive groups onto the surface of beads and covalent attachment of functionalized biomolecules, such as primers.
Abstract:
An amount of mitochondrial DNA molecules relative to an amount of nuclear DNA molecules is determined in a biological sample, and the relative amount is used for various purposes, e.g., screening, detection, prognostication or monitoring of various physiological and pathological conditions. As examples, an amount of mitochondrial DNA can be used to estimate a concentration of DNA of a tissue type, such as a fetal DNA concentration, tumor DNA concentration, or a concentration of DNA in the biological sample derived from a non-hematopoietic tissue source. Sequencing techniques can be used to determine a mitochondrial DNA concentration in a sample for an accurate detection of a level of cancer. A level of an auto-immune disease is also determined using a relative amount of mitochondrial DNA molecules compared nuclear DNA molecules.
Abstract:
Method for immobilization of a labeled oligonucleotide on a non-modified polymer substrate, the method comprising the following steps: a) providing a mixture comprising liquid, and a labeled oligonucleotide b) applying the mixture of step a) on a non-modified polymer substrate, wherein the oligonucleotide is immobilized on the non-modified polymer substrate via physisorption conveyed by the label of the oligonucleotide and wherein the label for immobilization is covalently bound to the oligonucleotide; and microarrays achieved by this method. The invention further relates to the use of a label attached to an oligonucleotide for immobilization of the labeled oligonucleotide on a non-modified polymer substrate by physisorption. Furthermore the invention relates to the use of the microarrays achieved by the method describe herein for assays and diagnostic kits comprising such microarrays.
Abstract:
Disclosed is a method suitable for (long-range) mate pair sequencing wherein the mate pairs are located within a certain distance from each other on the same nucleotide sequence. By ligating a DNA fragment into an identifier section -containing backbone, a digestable circularized construct is provided to which adaptors can be ligated after digestion. Amplification yields amplicons that contain a combination of the identifier section with the terminal part of the fragments. The fragments are subsequently mated to each other to obtain a mated pair by identifying the corresponding identifier section in both amplicons. The mated pairs can be used in the construction of genome scaffolds or in the generation of draft genome sequences.
Abstract:
A sensor device includes a sensor array and a flow cell in fluid communication with the sensor array. Bias circuitry apply bias arrangements to the sensor array to produce sensor data. Peripheral circuitry coupled to the bias circuitry produces streams of data from the sensor array, the peripheral circuitry having an active mode and an idle mode. Logic to switch the peripheral circuitry between the active mode and the idle mode to control power consumption is provided. A temperature sensor may be included, and the logic can operate with feedback to switch between the active mode and the idle mode to maintain the temperature within an operating range.
Abstract:
Provided herein, in some embodiments, are novel compositions and improved methods for nucleic acid manipulation and analysis that can be applied to multiplex nucleic acid sequencing. In certain embodiments, the novel compositions and methods presented herein are more cost effective, more conducive to automation, and faster than traditional approaches. Also provided herein are novel blocking nucleic acids.