摘要:
This invention relates generally to analysis of gene expression profiles. In particular, the present invention provides a method for a method for analyzing gene expression profiles of a cell, which method comprises: a) providing for isolated mRNA or cDNA target sequences from a cell; b) sequentially hybridizing said isolated mRNA or cDNA target sequences with a plurality of nucleotide probes; and c) assessing the sequential hybridization between said isolated mRNA or cDNA target sequences and said plurality of nucleotide probes to analyze gene expression profiles of said cell. Systems for analyzing gene expression profiles are also provided. Optical devices for detecting hybridization signal are further provided.
摘要:
This invention relates generally to analysis of gene expression profiles. In particular, the present invention provides a method for a method for analyzing gene expression profiles of a cell, which method comprises: a) providing for isolated mRNA or cDNA target sequences from a cell; b) sequentially hybridizing said isolated mRNA or cDNA target sequences with a plurality of nucleotide probes; and c) assessing the sequential hybridization between said isolated mRNA or cDNA target sequences and said plurality of nucleotide probes to analyze gene expression profiles of said cell. Systems for analyzing gene expression profiles are also provided. Optical devices for detecting hybridization signal are further provided.
摘要:
The present invention relates to the field of gene engineering, provides a DNA sequencing method and system. Said DNA sequencing method includes following steps: A. said DNA is processed into multiple DNA segments, and then constructed into multiple DNA tags; B. amplification of every single DNA tag, and then processed into single stranded DNA; C. Utilize the anchor which can ligate to DNA tags and possesses at least one degenerated base to sequence every single DNA tag and thus produce sequencing signal; D. Obtain sequences of every single DNA segment by sequencing signal. Said DNA sequencing system, includes: unit of short tags construction, unit of amplification, unit of sequencing reaction and unit of signal processing. In this invention, since DNA tags are sequenced by using sequencing anchor with at least one degenerative abase, length of DNA tags that can be directly sequenced is extended. Both short and long DNA tags can be sequenced. Thus application of DNA sequencing is expanded.
摘要:
The present invention relates to the field of gene engineering, provides a DNA sequencing method and system. Said DNA sequencing method includes following steps: A. said DNA is processed into multiple DNA segments, and then constructed into multiple DNA tags; B. amplification of every single DNA tag, and then processed into single stranded DNA; C. Utilize the anchor which can ligate to DNA tags and possesses at least one degenerated base to sequence every single DNA tag and thus produce sequencing signal; D. Obtain sequences of every single DNA segment by sequencing signal. Said DNA sequencing system, includes: unit of short tags construction, unit of amplification, unit of sequencing reaction and unit of signal processing. In this invention, since DNA tags are sequenced by using sequencing anchor with at least one degenerative abase, length of DNA tags that can be directly sequenced is extended. Both short and long DNA tags can be sequenced. Thus application of DNA sequencing is expanded.
摘要:
In the invention, a fluid cell, used for sequencing reaction between DNA fragments and reagents, comprises: a reaction chamber, one inner side of which is fixed with multiple DNA fragments; a reagent inlet and a reagent outlet, which are separately located at each end of the other inner side of the reaction chamber and used for reagents flowing into and out from the reaction chamber. Multiple DNA fragments are fixed on the reaction chamber with the small capacity as short tag arrays in sequence and make the reaction go on at the condition of the reagents without diffusion barriers, which improves the contacts of reagents and DNA fragments so as to shorten the reaction time. At the same time, the demands to the concentration and dosage of reagents are low, which reduces the consumption of reagents. As the result, the sequencing cost cut down. Multiple DNA fragments are fixed on the fluid cell at the same time, which provides a way for parallel reaction of various fragments. The automatic high-through sequencing and fast sequencing reactions are achieved in the invention.