145. Rational Design of Aptazyme Based Riboswitches Using the Strand Displacement Mechanism
نویسندگان
چکیده
منابع مشابه
Rational design of aptazyme riboswitches for efficient control of gene expression in mammalian cells
Efforts to control mammalian gene expression with ligand-responsive riboswitches have been hindered by lack of a general method for generating efficient switches in mammalian systems. Here we describe a rational-design approach that enables rapid development of efficient cis-acting aptazyme riboswitches. We identified communication-module characteristics associated with aptazyme functionality t...
متن کاملSynthetic mammalian riboswitches based on guanine aptazyme.
Allosteric hammerhead ribozymes (aptazymes) that are activated by guanine were used to control mammalian gene expression in cis and in trans. Coexpression of the two mechanistically distinct riboswitches resulted in an improved dynamic range of gene expression.
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Achieving strategies to finely regulate with biological inputs the formation and functionality of DNA-based nanoarchitectures and nanomachines is essential toward a full realization of the potential of DNA nanotechnology. Here we demonstrate an unprecedented, rational approach to achieve control, through a simple change of the solution's pH, over an important class of DNA association-based reac...
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DNA strand displacement has been used to construct a variety of components, devices, and circuits. The sequences of involved nucleic acid molecules can greatly influence the kinetics and function of strand displacement reactions. To facilitate consideration of spurious reactions during the design process, one common strategy is to subdivide DNA strands into domains, continuous nucleic acid base...
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Replicative holoenzymes exhibit rapid and processive primer extension DNA synthesis, but inefficient strand displacement DNA synthesis. We investigated the bacteriophage T4 and T7 holoenzymes primer extension activity and strand displacement activity on a DNA hairpin substrate manipulated by a magnetic trap. Holoenzyme primer extension activity is moderately hindered by the applied force. In co...
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ژورنال
عنوان ژورنال: Molecular Therapy
سال: 2015
ISSN: 1525-0016
DOI: 10.1016/s1525-0016(16)33750-9