2018
DOI: 10.1002/ange.201806749
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DNA‐Mediated Proximity‐Based Assembly Circuit for Actuation of Biochemical Reactions

Abstract: Smart nanodevices that integrate molecular recognition and signal production hold great promise for the point‐of‐care (POC) diagnostic applications. Herein, the development of a DNA‐mediated proximity assembly of biochemical reactions, which was capable of sensing various bio‐targets and reporting easy‐to‐read signals is reported. The circuit was composed of a DNA hairpin‐locked catalytic cofactor with inhibited activity. Specific molecular inputs can trigger a conformational switch of the DNA locks through th… Show more

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Cited by 2 publications
(6 citation statements)
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“…Fu's group fabricated a DNA-regulated proximity-based logic circuit for modulation of biochemical reactions, Figure 17B. [113] The circuit consisted of a hairpin-locked catalytic cofactor with prohibited activity. In the presence of specific inputs, the TMSD reaction and aptamer/target interaction will induce a conformational change of DNA lock.…”
Section: Dna Logic-based Intelligent Bioanalysismentioning
confidence: 99%
“…Fu's group fabricated a DNA-regulated proximity-based logic circuit for modulation of biochemical reactions, Figure 17B. [113] The circuit consisted of a hairpin-locked catalytic cofactor with prohibited activity. In the presence of specific inputs, the TMSD reaction and aptamer/target interaction will induce a conformational change of DNA lock.…”
Section: Dna Logic-based Intelligent Bioanalysismentioning
confidence: 99%
“…GOx/HRP cascade) are not sensitive to enzyme proximity, as discussed previously [92], only small differences of enzyme cascade activities were observed for these four conformations of DNA tweezers. In contrast, DNA nanomachines were more efficient in regulating enzyme/cofactor pairs (which do rely on proximity interaction), with enhanced activities ranging from a few fold up to 100-fold or more [48,49].…”
Section: Regulation Of Proximity Interactions In Biochemical Reactionsmentioning
confidence: 99%
“…Another commonly used crosslinker is disuccinimidyl suberate (DSS) in which the double succinimide ends can react with two primary amines to link them together [47]. DSS is especially useful for conjugating amine-modified ssDNA with organic cofactors, such as NAD or ATP [47][48][49]. Considerable progress has been made over the past two decades to improve the site-specificity of DNA-protein crosslinking.…”
Section: Protein-dna Bioconjugationmentioning
confidence: 99%
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