The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 09, 1997

Filed:

Aug. 23, 1994
Applicant:
Inventors:

Joh-E Ikeda, Ibaraki, JP;

Shinji Hadano, Kanagawa, JP;

Haruhiko Yokoi, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12Q / ; C07H / ; C07H / ;
U.S. Cl.
CPC ...
435 912 ; 435-6 ; 536 243 ; 536 2431 ; 536 2432 ; 536 2433 ;
Abstract

A method of amplifying template DNA by polymerase chain reaction (PCR) in which a single oligonucleotide primer having a restriction site is contacted with the template DNA, whereby the oligonucleotide randomly anneals to a single strand of the template DNA and DNA sequences complementary to the single strand are synthesized. An initial PCR amplification yields synthetic DNA sequences having the oligonucleotide sequence incorporated therein at the 5' end, and a sequence complementary to the template DNA. A second PCR amplification under higher stringency conditions amplifies regions of the template DNA to give DNA fragments having the restriction sites of the oligonucleotide primer. Thereby the method can be used to amplify trace quantities of template DNA of unknown sequence simply and efficiently, which has applications in the construction of DNA libraries of chromosome specific regions and the development of probes for chromosome mapping.


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