发明名称 |
METHOD FOR AMPLIFYING cDNA DERIVED FROM TRACE AMOUNT OF SAMPLE |
摘要 |
The problem to be solved by the present invention is to provide a method for preparing a sample for comprehensively and accurately analyzing gene expression in a single cell or a few cells, for example, by a large-scale DNA sequencer. The present invention relates to a method for amplifying cDNA from mRNA in a cell, comprising: (1) capturing mRNA derived from the cell by a first DNA probe containing a first tag sequence and a poly T sequence and being immobilized to a solid carrier in a single reaction vessel, and synthesizing a first strand cDNA from the mRNA by a reverse transcription reaction; (2) removing a reaction reagent from the reaction vessel while keeping the first strand cDNA synthesized onto the solid carrier in the reaction vessel; (3) adding a polynucleotide sequence consisting of one type of nucleotides to 3′ terminal of the first strand cDNA on the solid carrier; (4) hybridizing a second DNA probe containing a second tag sequence and a complementary sequence to the polynucleotide sequence with the cDNA to which the polynucleotide sequence is added, and synthesizing a second strand cDNA; and (5) performing a DNA amplification reaction using the second strand cDNA synthesized on the solid carrier as a template. |
申请公布号 |
US2015024959(A1) |
申请公布日期 |
2015.01.22 |
申请号 |
US201214383209 |
申请日期 |
2012.11.21 |
申请人 |
HITACHI, LTD. |
发明人 |
Tsunoda Hiroyuki;Huang Huan;Ohta Mari;Kambara Hideki |
分类号 |
C12N15/10;C12Q1/68 |
主分类号 |
C12N15/10 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for amplifying cDNA from mRNA in a cell, comprising:
(1) capturing mRNA derived from the cell by a first DNA probe comprising a first tag sequence and a poly T sequence and being immobilized to a solid carrier in a single reaction vessel, and synthesizing a first strand cDNA from the mRNA by a reverse transcription reaction; (2) removing a reaction reagent from the reaction vessel while keeping the first strand cDNA synthesized onto the solid carrier in the reaction vessel; (3) adding a polynucleotide sequence consisting of one type of nucleotides to 3′ terminal of the first strand cDNA on the solid carrier; (4) hybridizing a second DNA probe comprising a second tag sequence and a complementary sequence to the polynucleotide sequence with the cDNA to which the polynucleotide sequence is added, and synthesizing a second strand cDNA; and (5) performing a DNA amplification reaction using the second strand cDNA synthesized on the solid carrier as a template. |
地址 |
Tokyo JP |