Complementary and partially complementary DNA duplexes tethered to a functionalized substrate: a molecular dynamics approach to biosensing

Literature Information

Publication Date 2011-06-09
DOI 10.1039/C1CP21115C
Impact Factor 3.676
Authors

Susanna Monti, Ivo Cacelli, Alessandro Ferretti, Giacomo Prampolini, Vincenzo Barone


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Abstract

Molecular dynamics simulations (90 ns) of different DNA complexes attached to a functionalized substrate in solution were performed in order to clarify the behavior of mismatched DNA sequences captured by a tethered DNA probe (biochip). Examination of the trajectories revealed that the substrate influence and a series of cooperative events, including recognition, reorientation and reorganization of the bases, could induce the formation of stable duplexes having non-canonical arrangements. Major adjustment of the structures was observed when the mutated base was located in the end region of the chain close to the surface.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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