Hetero-pores
First Claim
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1. A hetero-oligomeric pore derived from Msp which comprises a narrowing having a net negative charge, wherein the hetero-oligomeric pore comprises at least one monomer comprising a narrowing forming region comprising an amino acid sequence having at least one amino acid substitution from a non-negatively charged amino acid to a negatively charged amino acid compared with an amino acid sequence of a reference narrowing forming region, wherein the reference narrowing forming region corresponds to amino acids 83 to 111 of SEQ ID NO:
- 2 and has the following substitutions;
D90N, D91N, and D93N, and wherein none of the remaining monomers of the hetero-oligomeric pore has a sequence as set forth in SEQ ID NO;
2.
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Abstract
The invention relates to hetero-oligomeric pores derived from Msp. The invention also relates to polynucleotide characterisation using the hetero-oligomeric pores.
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Citations
18 Claims
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1. A hetero-oligomeric pore derived from Msp which comprises a narrowing having a net negative charge, wherein the hetero-oligomeric pore comprises at least one monomer comprising a narrowing forming region comprising an amino acid sequence having at least one amino acid substitution from a non-negatively charged amino acid to a negatively charged amino acid compared with an amino acid sequence of a reference narrowing forming region, wherein the reference narrowing forming region corresponds to amino acids 83 to 111 of SEQ ID NO:
- 2 and has the following substitutions;
D90N, D91N, and D93N, and wherein none of the remaining monomers of the hetero-oligomeric pore has a sequence as set forth in SEQ ID NO;
2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- 2 and has the following substitutions;
Specification