Modified nanopores, compositions comprising the same, and uses thereof

US10976300B2 · kind B2 · utility

Assignee

• Katholieke Universiteit Leuven · BE

Inventors

• Giovanni Maglia · Kessel-Lo, BE
• Lorenzo Franceschini · Leuven, BE
• Tine Brouns · Lanaken, BE
• Andrew John Heron · North Hinksey, GB
• Lakmal Jayasinghe · North Hinksey, GB
• Elizabeth Jayne Wallace · Felton, GB

Key dates

• Filing date: Dec 8, 2016
• Grant date: Apr 13, 2021
• Expiry date: Feb 5, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C12Q1/6869
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Provided herein relate to modified or mutant forms of cytolysin A (ClyA) and compositions comprising the same. In particular, the modified or mutant forms of ClyA permits efficient capture and/or translocation of a target negative-charged molecule or polymer through the modified or mutant ClyA nanopores at low or physiological ionic strengths. Thus, methods for using the modified or mutant forms of ClyA and compositions, for example, for characterizing a target negatively-charged analyte, e.g., a target polynucleotide, are also provided.