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:
Jul. 17, 2018

Filed:

Mar. 14, 2014
Applicant:

Georgetown University, Washington, DC (US);

Inventors:

Mark Danielsen, Germantown, MD (US);

Berenice Alfonso, Fairfax, VA (US);

Bolor Tumurpurev, Washington, DC (US);

Assignee:

Georgetown University, Washington, DC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P 19/34 (2006.01); C12Q 1/68 (2018.01); C07H 21/02 (2006.01); C07H 21/04 (2006.01); C07H 21/00 (2006.01); C12Q 1/6844 (2018.01);
U.S. Cl.
CPC ...
C12Q 1/6844 (2013.01); C12Q 1/6844 (2013.01); C12Q 2521/301 (2013.01); C12Q 2525/131 (2013.01); C12Q 2525/307 (2013.01);
Abstract

The present invention relates to a novel method for detecting a target polynucleotide having a target sequence, comprising (a) exposing the target polynucleotide to an initiating oligonucleotide; (b) extending the initiating oligonucleotide with an extended sequence complementary to the target sequence; (c) ligating the initiating oligonucleotide sequence with the extended sequence to form a circular oligonucleotide having a nicking endonuclease (NE) recognition/cutting sequence; (d) exposing the circular oligonucleotide to a DNA polymerase and a DNA synthesis primer to synthesize DNA having a NE recognition sequence; (e) exposing the synthesized DNA to a probe having the NE recognition/cutting sequence to form a double stranded DNA having a full NE site; (f) exposing the double stranded DNA to a nicking endonuclease (NE) to cleave the probe; and (g) detecting the cleaved probe. The presence of the cleaved probe indicates the presence of the target polynucleotide.


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