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Methods, systems, and computer readable media for repeat sequencing

  • US 10,329,608 B2
  • Filed: 10/08/2013
  • Issued: 06/25/2019
  • Est. Priority Date: 10/10/2012
  • Status: Active Grant
First Claim
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1. A method for sequencing a nucleic acid template, comprising:

  • (a) performing a first sequencing process on a first portion of the nucleic acid template to obtain a first sequencing result using a sequencing instrument configured to sequence a given sample two or more times, wherein the first sequencing process includes delivering first reagents including a first polymerase and first primers to the nucleic acid template and further includes flowing nucleotides to the nucleic acid template according to a first order comprising a first 4-flow block of flows comprising a first 4-flow permutation of flows A, C, G, and T, followed by a first predetermined number of repeats of a first 3-flow permutation of a first set of three flows selected from A, C, G, and T, followed by an isolated flow of the nucleotide not in the first set; and

    (b) after the first sequencing process, performing a second sequencing process on a second portion of the nucleic acid template to obtain a second sequencing result using the sequencing instrument, wherein the second sequencing process includes delivering second reagents including a second polymerase and second primers to the nucleic acid template and further includes flowing nucleotides to the nucleic acid template according to a second order different from the first order, wherein the first and second portions of the nucleic acid template may overlap at least partially, completely, or not at all.

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