摘要:
Prepackaged reagent reservoirs with associated nozzles allow for accurate, repeatable distribution of reagents in various types of reactions, reducing the risk of human error. Series of reservoirs may be arrayed on a sheet or plane for automated manipulation providing a simply format for organizing, storing, transporting, and distributing reagents needed in complex reactions such as those in the molecular biology field.
摘要:
The present invention provides improved methods, compositions and kits for short read next generation sequencing (NGS). The methods, compositions and kits of the present invention enable phasing of two or more nucleic acid sequences in a sample, i.e. determining whether the nucleic acid sequences (typically comprising regions of sequence variation) are located on the same chromosome and/or the same chromosomal fragment. Phasing information is obtained by performing multiple, successive sequencing reactions from the same immobilized nucleic acid template. The methods, compositions and kits provided herein are useful, for example, for haplotyping, SNP phasing, or for determining downstream exons in RNA-seq.
摘要:
The present invention provides methods, compositions and kits for detecting duplicate sequencing reads. In some embodiments, the duplicate sequencing reads are removed.
摘要:
The invention provides methods for isothermal amplification of RNA. The methods are particularly suitable for amplifying a plurality of RNA species in a sample. The methods employ a composite primer, a second primer and strand displacement to generate multiple copies of DNA products comprising sequences complementary to an RNA sequence of interest. In another aspect, the methods employ a single primer (which is a composite primer) and strand displacement to generate multiple copies of DNA products comprising sequences complementary to an RNA sequence of interest. In some embodiments, a transcription step is included to generate multiple copies of sense RNA of an RNA sequence of interest. The methods are useful for preparation of nucleic acid libraries and substrates for analysis of gene expression of cells in biological samples. The invention also provides compositions and kits for practicing the amplification methods, as well as methods which use the amplification products.
摘要:
The present invention provides methods, compositions and kits for the generation of next generation sequencing (NGS) libraries in which non-desired nucleic acid sequences have been depleted or substantially reduced. The methods, compositions and kits provided herein are useful, for example, for the production of libraries from total RNA with reduced ribosomal RNA and for the reduction of common mRNA species in expression profiling from mixed samples where the mRNAs of interest are present at low levels. The methods of the invention can be employed for the elimination of non-desired nucleic acid sequences in a sequence-specific manner, and consequently, for the enrichment of nucleic acid sequences of interest in a nucleic acid library.
摘要:
The invention provides methods and compositions, including kits, for the construction of directional nucleic acid libraries. The invention further provides methods and compositions for the amplification and sequencing of directional cDNA libraries.
摘要:
The invention provides methods, compositions, and kits for fragmentation and labeling of nucleic acids. More particularly, the invention relates to methods for fragmentation of nucleic acids to produce fragments with 3′ end hydroxyl groups within a desired size range. In methods of the invention, nucleic acids are fragmented at abasic sites to produce fragments with blocked 3′ ends. The 3′ ends are unblocked to produce polynucleotide fragments with hydroxyl groups at their 3′ ends. Methods, kits, and compositions for carrying out fragmentation of a polynucleotide template in a single reaction mixture to yield fragments with 3′-hydroxl ends within the desired size range are disclosed.
摘要:
The invention relates to the field of polynucleotide amplification. More particularly, the invention provides methods, compositions and kits for amplification of (i.e., making multiple copies of) a multiplicity of different polynucleotide template sequences using a randomly primed RNA/DNA composite primer.
摘要:
The invention provides methods for linear processing of multiple samples through a series of reactions. The methods allow parallel processing of multiple samples through a series of reactions. Systems for performing the methods are also provided.
摘要:
Disclosed herein are methods, compositions and kits for quantitating one or more specific nucleic acids within a plurality of nucleic acids. In some embodiments, a sequencing library is constructed from enriched probe extension products specific for the specific nucleic acids and sequenced. In some embodiments, the resulting reads are used for removing duplicate reads. In some embodiments, counting of verified probes is used to quantitate or determine the number of specific nucleic acid molecules in the starting nucleic acid sample.