Method of improving the movement of a target polynucleotide with respect to a transmembrane pore
First Claim
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1. A method of characterizing a target polynucleotide, comprising:
- a) providing a transmembrane pore and a polynucleotide binding protein in which a part of the transmembrane pore which interacts with the polynucleotide binding protein and/or a part of the polynucleotide binding protein which interacts with the transmembrane pore has been modified, wherein the modification comprises an amino acid substitution, insertion, or deletion relative to an unmodified transmembrane pore or polynucleotide binding protein;
b) contacting the transmembrane pore and polynucleotide binding protein provided in (a) with the target polynucleotide such that the polynucleotide binding protein controls the movement of the polynucleotide with respect to the transmembrane pore; and
c) taking one or more electrical or optical measurements as the polynucleotide moves with respect to the transmembrane pore.
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Abstract
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.
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Citations
10 Claims
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1. A method of characterizing a target polynucleotide, comprising:
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a) providing a transmembrane pore and a polynucleotide binding protein in which a part of the transmembrane pore which interacts with the polynucleotide binding protein and/or a part of the polynucleotide binding protein which interacts with the transmembrane pore has been modified, wherein the modification comprises an amino acid substitution, insertion, or deletion relative to an unmodified transmembrane pore or polynucleotide binding protein; b) contacting the transmembrane pore and polynucleotide binding protein provided in (a) with the target polynucleotide such that the polynucleotide binding protein controls the movement of the polynucleotide with respect to the transmembrane pore; and c) taking one or more electrical or optical measurements as the polynucleotide moves with respect to the transmembrane pore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification