SINGLE MOLECULE LOADING METHODS AND COMPOSITIONS

摘要

Methods, compositions and arrays for non-random loading of single analyte molecules into array structures are provided. For example, methods are presented for providing a surface comprising the plurality of array regions by exposing the surface to a solution comprising polymerase enzymes where each polymerase enzyme is bound to a binding structure having several functional moieties. The functional moieties of the binding structure react with the binding elements on the array regions such that the functional moieties on the binding structure react with other available binding sites in an array region, preventing other polymerase-binding structures from loading, and resulting in a single polymerase molecule bound to each of these regions.

主权项

1. A method of distributing single polymerase enzyme molecules into a plurality of array regions comprising:
providing a surface comprising the plurality of array regions, each array region comprising several binding elements; and exposing the surface to a solution comprising polymerase enzymes, each polymerase enzyme bound to a binding structure comprising several functional moieties, whereby the functional moieties of the binding structure react with the binding elements on the array regions; and whereby in at least some of the array regions, the functional moieties on the binding structure react with other available binding sites in a given array region, depleting the binding sites and preventing other polymerase-binding structures from loading, resulting in a single polymerase enzyme bound to each of these regions.