Abstract: Disclosed are methods for isolating polymerase complexes from a mixture of polymerase complex components. The polymerase complexes can comprise a nanopore to provide isolated nanopore sequencing complexes. The methods relate to the positive and negative isolation of the polymerase complexes and/or nanopore sequencing complexes. Also disclosed is a nucleic acid adaptor for isolating active polymerase complexes, polymerase complexes comprising the nucleic acid adaptor, and methods for isolating active polymerase complexes using the nucleic acid adaptor.

Abstract: The present disclosure relates to tagged multi-nucleotide compounds, which comprise a single tag moiety covalently linked to a plurality of nucleoside-5?-oligophosphate moieties. As disclosed herein, these tagged multi-nucleotide compounds have improved characteristics as polymerase substrates and can be used in a range of nucleic acid detection and sequencing methods, including nanopore sequencing-by-synthesis.