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:
Apr. 23, 2002

Filed:

Apr. 04, 2001
Applicant:
Inventors:

Qiang Liu, Upland, CA (US);

Steve S. Sommer, Duarte, CA (US);

Assignee:

City of Hope, Duarte, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12Q 1/68 ; C12P 1/934 ; B01D 5/702 ; C02F 1/469 ; C07H 2/104 ;
U.S. Cl.
CPC ...
C12Q 1/68 ; C12P 1/934 ; B01D 5/702 ; C02F 1/469 ; C07H 2/104 ;
Abstract

A denaturation fingerprinting method (dnF) involves subjecting a nucleic acid segment of interest to bidirectional cycle sequencing using oppositely oriented primers and incorporating two different dideoxynucleotides (ddNTPs) in the sequencing reaction. The resulting fragments are separated by denaturing electrophoresis. In one embodiment, designated dnF , reactions and electrophoretic separation using the two ddNTPs are conducted separately. In an alternative embodiment, designated dnF , one of the ddNTPs has a mobility altering modification such that electorphoretic separation occurs when both ddNTPs are employed in the same reaction. The methods are useful for detecting genetic mutations.


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