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. 06, 2004

Filed:

Mar. 24, 2000
Applicant:
Inventors:

Alexandre Izmailov, Etobicoke, CA;

Henryk Zaleski, Mississauga, CA;

Stephen Darasch, Toronto, CA;

Assignee:

Bayer HealthCare LLC, Tarrytown, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/900 ; G01N 3/348 ; C12Q 1/68 ;
U.S. Cl.
CPC ...
G06F 1/900 ; G01N 3/348 ; C12Q 1/68 ;
Abstract

In order to align DNA sequence data traces, an experimental data trace representing the positions of a first species of base within a target polynucleotide and a reference data trace representing the positions of a second species of base (which may be the same as or different from the first species) within a reference polynucleotide are obtained by separating appropriate sequencing fragments generated from the target and reference polynucleotides on an electrophoresis gel. For each reference data trace, a plurality of peaks corresponding to fragments having a size in the range of 40 to 1200 bases are selected. A base number is assigned to each of the selected peaks in the reference data trace, and a numerical “peak file” is created with information about the peak number and migration time (or distance). This peak file is analyzed to determine a set of polynomial coefficients which will allow substantial linearization of a plot of peak number versus separation between adjacent peaks and alignment of the traces with respect to each other. These coefficients are used to create a corrected time scale identifying where peaks should be located on a given experimental gel. This corrected time scale is used to guide the sampling of the experimental data, and for assignment of peaks within the data.


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