发明名称 |
SUBTRACTIVE AMPLIFICATION |
摘要 |
A method is provided for preferentially amplifying target RNA relative to nontarget RNA in a sample of tester RNA. According to the method, a sample of tester RNA is contacted with driver sequences which are complementary to the non-target RNA under conditions where the driver sequences hybridize to the non-target RNA. A nucleic acid primer is then extended using the target RNA as a template, forming a DNA template complementary to some or all of the target RNA. The DNA template formed using the target RNA as template is then rendered single-stranded to enable the hybridization of the DNA template to a promoter template. The DNA template is then extended using the promoter template to form an extended DNA template comprising a functional double-stranded promoter. Multiple copies of the target RNA sequence can now be transcribed from the extended DNA template through recognition of the contained functional double-stranded promoter by RNA polymerase.
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申请公布号 |
CA2252801(A1) |
申请公布日期 |
1997.11.06 |
申请号 |
CA19972252801 |
申请日期 |
1997.04.29 |
申请人 |
GENESCAPE, INC. |
发明人 |
MALEK, LAWRENCE T.;SOOKNANAN, ROY R. |
分类号 |
C12Q1/68;(IPC1-7):C12Q1/68;C12P19/34 |
主分类号 |
C12Q1/68 |
代理机构 |
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