Chemical process for amplifying and detecting nucleic acid sequences
US5846709A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1993 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Jun 15, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/6816
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to a method of amplifying and detecting single or double stranded target nucleic acid molecules. Amplification of the target nucleic acid molecule is accomplished by using at least two chemically modified oligonucleotide probes per target nucleic acid molecule to form a joined oligonucleotide product. Each oligonucleotide probe is comprised of a long and short sequence. The long sequence of each probe hybridizes to adjacent regions of the target nucleic acid molecule. The short sequences of each probe hybridize to each other. Chemical functionality groups attached to the short sequences of each oligonucleotide probe covalently combine linking the probes to form a joined oligonucleotide product. The joined oligonucleotide product is formed without the use of enzymes. The reactivity of the chemical functionality groups on each probe is target dependent. The chemical functionality group on each probe is prevented from reacting with other chemical functionality groups on other probes unless the probes are properly hybridized to the target molecule and to each other, as described above. The chemical functionality groups are covalently attached to the sh…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.