IP Library Granted Patent US 10,677,776
Granted Patent B2
US 10,677,776 · App. 16/046,931 · Granted Jun 9, 2020

Exporting measurements of nanopore arrays

Inventors: Roger J. A. Chen (Saratoga, CA); Hui Tian (Cupertino, CA); Santiago Fernandez-Gomez (Sunnyvale, CA)
Assignee: Roche Sequencing Solutions, Inc.
G01N33/48721C12Q1/6869B82Y15/00
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Quick Facts
Patent No.
US 10,677,776
App. No.
16/046,931
Granted
Jun 9, 2020
Kind
B2
Abstract

A method of exporting measurements of a nanopore sensor on a nanopore based sequencing chip is disclosed. An electrical characteristic associated with the nanopore sensor is measured. The electrical characteristic associated with the nanopore sensor is processed. A summary for the electrical characteristic and one or more previous electrical characteristics is determined. The summary for the electrical characteristic and the one or more previous electrical characteristics are exported. Determining the summary includes determining that the electrical characteristic and at least a portion of the one or more previous electrical characteristics correspond to a base call event at the nanopore sensor. The summary represents the electrical characteristic and the at least a portion of the one or more previous electrical characteristics.

Claims (46)

1. A method of exporting measurements of a nanopore sensor on a nanopore based sequencing system, comprising:

making a plurality of measurements of an electrical characteristic associated with the nanopore sensor;

processing the plurality of measurements of the electrical characteristic associated with the nanopore sensor; and

performing data reduction to the plurality of measurements of the electrical characteristic associated with the nanopore sensor, comprising:

determining that a first portion of the plurality of measurements of the electrical characteristic correspond to a single base call event at the nanopore sensor;

determining a summary for the first portion of the plurality of measurements of the electrical characteristic, wherein determining the summary comprises: representing the first portion of the plurality of measurements of the electrical characteristic such that consecutive measurements of the electrical characteristic are mapped to a single magnitude value and either (i) a time duration or (ii) a count of the consecutive measurements of the electrical characteristic; and

exporting the summary for the first portion of the plurality of measurements of the electrical characteristic.

2. The method of claim 1 , wherein determining the summary comprises:

representing the first portion of the plurality of measurements of the electrical characteristic with a magnitude parameter and a time parameter, wherein the time parameter corresponds to a duration of the first portion of the plurality of measurements of the electrical characteristic.

3. The method of claim 1 , wherein determining the summary comprises:

representing the first portion of the plurality of measurements of the electrical characteristic such that consecutive measurements of the electrical characteristic are mapped to a single magnitude value and a count of the consecutive measurements of the electrical characteristic.

4. The method of claim 1 , wherein determining the summary comprises:

representing the first portion of the plurality of measurements of the electrical characteristic such that consecutive measurements of the electrical characteristic that are mapped to a single magnitude value and a time duration of the consecutive measurements of the electrical characteristic.

5. The method of claim 1 , wherein determining the summary comprises:

extracting from the first portion of the plurality of measurements of the electrical characteristic information that enables the detection of a base call event.

6. The method of claim 1 , wherein determining the summary comprises:

performing base calling on the first portion of the plurality of measurements of the electrical characteristic.

7. The method of claim 1 , wherein the electrical characteristic comprises one of the following: a current, a voltage, a resistance, and a capacitance associated with the nanopore sensor or portions of the nanopore sensor.

8. A method of exporting measurements of a nanopore sensor on a nanopore based sequencing system, comprising:

making a plurality of measurements of an electrical characteristic associated with the nanopore sensor;

processing the plurality of measurements of the electrical characteristic associated with the nanopore sensor; and

performing data reduction to the plurality of measurements of the electrical characteristic associated with the nanopore sensor, comprising:

determining that a first portion of the plurality of measurements of the electrical characteristic correspond to a single base call event at the nanopore sensor;

determining a summary for the first portion of the plurality of measurements of the electrical characteristic, wherein determining the summary comprises: determining that a second portion of the plurality of measurements of the electrical characteristic preceding the first portion of the plurality of measurements of the electrical characteristic correspond to an open channel state event at the nanopore sensor, and wherein determining that the second portion of the plurality of measurements of the electrical characteristic correspond to an open channel state event at the nanopore sensor is based at least in part on the second portion of the plurality of measurements of the electrical characteristic having a magnitude above a threshold level; and

exporting the summary for the first portion of the plurality of measurements of the electrical characteristic.

9. The method of claim 8 , wherein determining the summary comprises:

representing the first portion of the plurality of measurements of the electrical characteristic with a magnitude parameter and a time parameter, wherein the time parameter corresponds to a duration of the first portion of the plurality of measurements of the electrical characteristic.

10. The method of claim 8 , wherein determining the summary comprises:

extracting from the first portion of the plurality of measurements of the electrical characteristic information that enables the detection of a base call event.

11. The method of claim 8 , wherein determining the summary comprises:

performing base calling on the first portion of the plurality of measurements of the electrical characteristic.

12. The method of claim 8 , wherein the electrical characteristic comprises one of the following: a current, a voltage, a resistance, and a capacitance associated with the nanopore sensor or portions of the nanopore sensor.

13. A method of exporting measurements of a nanopore sensor on a nanopore based sequencing system, comprising:

making a plurality of measurements of an electrical characteristic associated with the nanopore sensor;

processing the plurality of measurements of the electrical characteristic associated with the nanopore sensor, wherein processing the plurality of measurements of the electrical characteristic associated with the nanopore sensor comprises: offsetting drift of magnitudes of the electrical characteristic over time such that distinct magnitude levels can be used as signature levels for identifying different base call events at the nanopore sensor; and

performing data reduction to the plurality of measurements of the electrical characteristic associated with the nanopore sensor, comprising:

determining that a first portion of the plurality of measurements of the electrical characteristic correspond to a single base call event at the nanopore sensor;

determining a summary for the first portion of the plurality of measurements of the electrical characteristic; and

exporting the summary for the first portion of the plurality of measurements of the electrical characteristic.

14. The method of claim 13 , wherein determining the summary comprises:

representing the first portion of the plurality of measurements of the electrical characteristic with a magnitude parameter and a time parameter, wherein the time parameter corresponds to a duration of the first portion of the plurality of measurements of the electrical characteristic.

15. The method of claim 13 , wherein determining the summary comprises:

extracting from the first portion of the plurality of measurements of the electrical characteristic information that enables the detection of a base call event.

16. The method of claim 13 , wherein determining the summary comprises:

performing base calling on the first portion of the plurality of measurements of the electrical characteristic.

17. The method of claim 13 , wherein the electrical characteristic comprises one of the following: a current, a voltage, a resistance, and a capacitance associated with the nanopore sensor or portions of the nanopore sensor.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 12, 2019
From: CHEN, ROGER J.A.; TIAN, HUI; FERNANDEZ-GOMEZ, SANTIAGO
To: GENIA TECHNOLOGIES, INC.
Reel/Frame 050031/0397 →
MERGER AND CHANGE OF NAME Recorded Aug 12, 2019
From: GENIA TECHNOLOGIES, INC.; ROCHE SEQUENCING SOLUTIONS, INC.
To: ROCHE SEQUENCING SOLUTIONS, INC.
Reel/Frame 050031/0479 →
Continuity (2)
Division 14534042 · Nov 5, 2014
Related Publication 20180328910A1 · Nov 15, 2018