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Methods for analyzing nucleic acid sequences

Patent ·
OSTI ID:1020255

The present invention is directed to a method of sequencing a target nucleic acid. The method provides a complex comprising a polymerase enzyme, a target nucleic acid molecule, and a primer, wherein the complex is immobilized on a support Fluorescent label is attached to a terminal phosphate group of the nucleotide or nucleotide analog. The growing nucleic acid strand is extended by using the polymerase to add a nucleotide analog to the nucleic acid strand. The nucleotide analog added to the oligonucleotide primer as a result of the polymerizing step is identified. The time duration of the signal from labeled nucleotides or nucleotide analogs that become incorporated is distinguished from freely diffusing labels by a longer retention in the observation volume for the nucleotides or nucleotide analogs that become incorporated than for the freely diffusing labels.

Research Organization:
Cornell Research Foundation (Ithaca, NY)
Sponsoring Organization:
USDOE
Assignee:
Cornell Research Foundation (Ithaca, NY)
Patent Number(s):
7,943,307
Application Number:
11/336,122
OSTI ID:
1020255
Country of Publication:
United States
Language:
English

References (28)

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