Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterisation using CsgG.

Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterization using CsgG.

Abstract: 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.

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.

Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterisation using CsgG.

Abstract: 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.

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.

Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterization using CsgG.

Abstract: 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.

Abstract: The invention relates to mutant forms of CsgG. The invention also relates to analyte detection and characterisation using CsgG.

Abstract: 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.

Abstract: Methods of characterizing an analyte using a nanopore. One aspect features methods for characterizing a double-stranded polynucleotide using a nanopore, 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.

Abstract: A modified portal protein of a bacteriophage DNA packaging motor, wherein the modified portal protein is capable of direct insertion into a membrane and wherein the portal protein is modified compared to the wild type portal protein such that one or more amino acid residues on the outer surface of the portal protein is substituted by one or more other amino acid residue, and/or wherein a one or more amino acid residue is inserted on the outer surface of the portal protein so as to alter the outer surface hydrophobicity of the modified portal protein compared to the wild type portal protein.

Abstract: A system for characterising a target polynucleotide, the system comprising a membrane and a pore complex; wherein the pore complex comprises: (i) a nanopore located in the membrane, and (ii) an auxiliary protein or peptide attached to the nanopore; wherein the nanopore and the auxiliary protein or peptide together form a continuous channel across the membrane, the channel comprising a first constriction region and a second constriction region; wherein the first constriction region is formed by a portion of the nanopore, and wherein the second constriction region is formed by at least a portion of the auxiliary protein or peptide.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

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.