Patents by Inventor Lakmal Nishantha Jayasinghe
Lakmal Nishantha Jayasinghe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12258375Abstract: The invention relates to mutant forms of lysenin. The invention also relates to analyte characterisation using lysenin.Type: GrantFiled: November 8, 2023Date of Patent: March 25, 2025Assignee: Oxford Nanopore Technologies PLCInventors: Mark John Bruce, James Anthony Clarke, Andrew John Heron, Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace
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Publication number: 20250084472Abstract: The invention relates to a new method of characterising a target RNA polynucleotide by taking one or more measurements as the target RNA polynucleotide moves with respect to a transmembrane pore. The movement is controlled by a DNA helicase. The invention also relates to a modified RNA construct wherein the RNA polynucleotide has been modified to increase DNA helicase binding thereto.Type: ApplicationFiled: September 19, 2024Publication date: March 13, 2025Applicant: Oxford Nanopore Technologies PLCInventors: Daniel Ryan Garalde, Andrew John Heron, Lakmal Nishantha Jayasinghe, Daniel John Turner, James White
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Publication number: 20250066424Abstract: The present invention relates to novel protein pores and their uses in analyte detection and characterisation. The invention particularly relates to an isolated pore complex formed by a CsgG-like pore and a modified CsgF peptide, or a homologue or mutant thereof, thereby incorporating an additional channel constriction or reader head in the nanopore. The invention further relates to a transmembrane pore complex and methods for production of the pore complex and for use in molecular sensing and nucleic acid sequencing applications.Type: ApplicationFiled: August 7, 2024Publication date: February 27, 2025Applicants: VIB VZW, Vrije Universiteit Brussel, Oxford Nanopore Technologies PLCInventors: Han Remaut, Sander Egbert Van Der Verren, Nani Van Gerven, Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace, Pratik Raj Singh, Richard George Hambley, Michael Robert Jordan, John Joseph Kilgour
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Patent number: 12227800Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterisation using CsgG.Type: GrantFiled: January 26, 2023Date of Patent: February 18, 2025Assignee: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace
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Publication number: 20250042952Abstract: Provided is a method of characterising a polynucleotide using a transmembrane pore, wherein the pore is a double pore comprising a first Csg G pore, or a homologue thereof, and second CsgG pore, or a homologue thereof.Type: ApplicationFiled: May 20, 2024Publication date: February 6, 2025Applicants: Oxford Nanopore Technologies PLC, VIB VZW, Vrije Universiteit BrusselInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace, Pratik Raj Singh, Richard George Hambley, Michael Robert Jordan, Han Remaut
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Publication number: 20240417704Abstract: The invention relates to modified helicases with reduced unbinding from polynucleotides. The helicases can be used to control the movement of polynucleotides and are particularly useful for sequencing polynucleotides.Type: ApplicationFiled: July 2, 2024Publication date: December 19, 2024Applicant: Oxford Nanopore Technologies PLCInventors: Andrew John Heron, James Anthony Clarke, Ruth Moysey, Elizabeth Jayne Wallace, Mark John Bruce, Lakmal Nishantha Jayasinghe, Domenico Caprotti, Szabolcs Soeroes, Luke McNeill, David Antoni Alves, Rebecca Victoria Bowen, John Milton
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Publication number: 20240402121Abstract: The invention relates generally to a method of detecting and/or analysing target polymers, especially target polynucleotides, using a biological pore. The invention also relates to a novel system for carrying out the method. The method has many uses. In particular, the method may be used for diagnosis, detection of polymorphisms and V(D)J repertoire analysis.Type: ApplicationFiled: October 4, 2022Publication date: December 5, 2024Applicants: Oxford Nanopore Technologies PLC, Monash UniversityInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace, Richard Alexander Gutierrez, Michelle Anne Dunstone, Bradley Alan Spicer
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Publication number: 20240368683Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterization using CsgG.Type: ApplicationFiled: May 15, 2024Publication date: November 7, 2024Applicant: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace
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Patent number: 12084477Abstract: The present invention relates to novel protein pores and their uses in analyte detection and characterisation. The invention particularly relates to an isolated pore complex formed by a CsgG-like pore and a modified CsgF peptide, or a homologue or mutant thereof, thereby incorporating an additional channel constriction or reader head in the nanopore. The invention further relates to a transmembrane pore complex and methods for production of the pore complex and for use in molecular sensing and nucleic acid sequencing applications.Type: GrantFiled: September 16, 2022Date of Patent: September 10, 2024Assignees: VIB VZW, Vrije Universiteit Brussel, Oxford Nanopore Technologies PLCInventors: Han Remaut, Sander Egbert Van Der Verren, Nani Van Gerven, Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace, Pratik Raj Singh, Richard George Hambley, Michael Robert Jordan, John Joseph Kilgour
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Publication number: 20240287485Abstract: The invention relates to modified Dda helicases which can be used to control the movement of polynucleotides and are particularly useful for sequencing polynucleotides.Type: ApplicationFiled: March 5, 2024Publication date: August 29, 2024Applicant: Oxford Nanopore Technologies PLCInventors: Andrew John Heron, Rebecca Victoria Bowen, Mark John Bruce, Lakmal Nishantha Jayasinghe, Joseph Hargreaves Lloyd, Szabolcs Soeroes, Elizabeth Jayne Wallace, Christopher Peter Youd
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Publication number: 20240254172Abstract: The invention relates to mutant forms of lysenin. The invention also relates to analyte characterisation using the mutant forms of lysenin.Type: ApplicationFiled: February 13, 2024Publication date: August 1, 2024Applicant: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Mark John Bruce, Luke McNeill, Ramiz Iqbal Nathani, Pratik Raj Singh, Neil Roger Wood, Stephen Robert Young
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Patent number: 12024541Abstract: Provided is a method of characterising a polynucleotide using a transmembrane pore, wherein the pore is a double pore comprising a first Csg G pore, or a homologue thereof, and a second CsgG pore, or a homologue thereof.Type: GrantFiled: May 3, 2018Date of Patent: July 2, 2024Assignees: Oxford Nanopore Technologies PLC, VIB VZW, Vrije Universiteit BrusselInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace, Pratik Raj Singh, Richard George Hambley, Michael Jordan, Han Remaut
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Publication number: 20240199711Abstract: The invention relates to mutant forms of lysenin. The invention also relates to analyte characterisation using lysenin.Type: ApplicationFiled: November 8, 2023Publication date: June 20, 2024Applicant: Oxford Nanopore Technologies PLCInventors: Mark John Bruce, James Anthony Clarke, Andrew John Heron, Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace
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Publication number: 20240117422Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterization using CsgG.Type: ApplicationFiled: May 5, 2023Publication date: April 11, 2024Applicant: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace
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Publication number: 20240117421Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterisation using CsgG.Type: ApplicationFiled: January 26, 2023Publication date: April 11, 2024Applicant: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Elizabeth Yayne Wallace
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Patent number: 11920193Abstract: Methods of characterizing an analyte using a detector such as a nanopore and an enzyme are provided. One aspect features methods for characterizing a double-stranded polynucleotide using a detector, e.g., without using a hairpin connecting a template and a complement of the double-stranded polynucleotide. Another aspect features methods for characterizing an analyte using a tag-modified nanopore with increased sensitivity and/or higher throughput. Compositions and systems including, e.g., adaptors for attachment to double-stranded polynucleotides and tag-modified nanopores, which can be used in the methods are also provided.Type: GrantFiled: June 6, 2019Date of Patent: March 5, 2024Assignee: Oxford Nanopore Technologies PLCInventors: James Anthony Clarke, James White, Richard Muscat, Jessica Mary May Johnson, Ramiz Iqbal Nathani, Andrew John Heron, Mark John Bruce, Lakmal Nishantha Jayasinghe, Domenico Caprotti, David Jackson Stoddart, Rebecca Victoria Bowen, Christopher James Wright, Paul Richard Moody
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Publication number: 20240060126Abstract: The invention relates to improving the movement of a target polynucleotide with respect to a transmembrane pore when the movement is controlled by a polynucleotide binding protein.Type: ApplicationFiled: June 27, 2023Publication date: February 22, 2024Applicant: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace, Jonathan Bankes Pugh, Richard George Hambley, Neil Roger Wood, Clive Gavin Brown, James White, Andrew John Heron, Mark John Bruce, Christopher Peter Youd, Rebecca Victoria Bowen
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Publication number: 20230295715Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterisation using CsgG.Type: ApplicationFiled: January 26, 2023Publication date: September 21, 2023Applicant: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Elizabeth Yayne Wallace
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Publication number: 20230272017Abstract: Provided herein relate to modified or mutant forms of secretin and compositions comprising the same. In particular, the modified or mutant forms of secretin permits efficient capture and/or translocation of an analyte through the modified or mutant secretin nanopores. Methods for using unmodified secretin or the modified or mutant forms of secretin and compositions, for example, for characterizing an analyte, e.g., a target polynucleotide, are also provided.Type: ApplicationFiled: October 11, 2022Publication date: August 31, 2023Applicant: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace, Pratik Raj Singh
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Patent number: 11739377Abstract: The invention relates to improving the movement of a target polynucleotide with respect to a transmembrane pore when the movement is controlled by a polynucleotide binding protein. The invention also relates to improved transmembrane pores and polynucleotide binding proteins.Type: GrantFiled: October 20, 2020Date of Patent: August 29, 2023Assignee: Oxford Nanopore Technologies PLCInventors: Lakmal Nishantha Jayasinghe, Elizabeth Jayne Wallace, Jonathan Bankes Pugh, Richard George Hambley, Neil Roger Wood, Clive Gavin Brown, James White, Andrew John Heron, Mark Bruce, Christopher Peter Youd, Rebecca Victoria Bowen