Golden
Gate assembly is a popular molecular cloning method to assemble
multiple DNA fragments in a “one-pot” enzymatic reaction.
Taking advantage of the high combination efficiency provided by the
enzyme cocktail of this assembly method, we present a controllable
assembly system of synthetic DNA nanostructures in this work. Similar
to the rendering of duplex fragments to be assembled in Golden Gate
assembly, type II restriction enzyme creates specific sticky end pairs
for the DNA nanostructure units to connect, and ligase consolidates
the sticky end cohesion, which collectively enables the corresponding
hierarchical assembly. By application of this molecular cloning method
in DNA self-assembly, the enzymatic treatment leads to the production
of a number of high-order DNA nanostructures.