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2015 ; 5
(ä): 17722
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Enzyme-guided DNA Sewing Architecture
#MMPMID26634810
Song IH
; Shin SW
; Park KS
; Lansac Y
; Jang YH
; Um SH
Sci Rep
2015[Dec]; 5
(ä): 17722
PMID26634810
show ga
With the advent of nanotechnology, a variety of nanoarchitectures with varied
physicochemical properties have been designed. Owing to the unique
characteristics, DNAs have been used as a functional building block for novel
nanoarchitecture. In particular, a self-assembly of long DNA molecules via a
piece DNA staple has been utilized to attain such constructs. However, it needs
many talented prerequisites (e.g., complicated computer program) with fewer
yields of products. In addition, it has many limitations to overcome: for
instance, (i) thermal instability under moderate environments and (ii) restraint
in size caused by the restricted length of scaffold strands. Alternatively, the
enzymatic sewing linkage of short DNA blocks is simply designed into long DNA
assemblies but it is more error-prone due to the undeveloped sequence data. Here,
we present, for the first time, a comprehensive study for directly combining DNA
structures into higher DNA sewing constructs through the 5'-end cohesive ligation
of T4 enzyme. Inspired by these achievements, the synthesized DNA nanomaterials
were also utilized for effective detection and real-time diagnosis of
cancer-specific and cytosolic RNA markers. This generalized protocol for generic
DNA sewing is expected to be useful in several DNA nanotechnology as well as any
nucleic acid-related fields.