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Machines on Genes through the Computational Microscope

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JOURNAL OF CHEMICAL THEORY AND COMPUTATION
卷 19, 期 7, 页码 1945-1964

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AMER CHEMICAL SOC
DOI: 10.1021/acs.jctc.2c01313

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This article reports the increasing role of computational biophysics in characterizing the mechanisms of gene machines, focusing on innovative applications of computational methods and their integration with structural and biophysical experiments. Advanced computational methods reveal the biophysical function that is unseen through experimental techniques, accomplishing the power of the computational microscope. Bridging the gap between experimentally obtained macroscopic observables and the molecular principles playing at the microscopic level is crucial for harnessing molecular machines for medical, pharmaceutical, and biotechnological purposes.
Macromolecular machines acting on genes are at the core of life's fundamental processes, including DNA replication and repair, gene transcription and regulation, chromatin packaging, RNA splicing, and genome editing. Here, we report the increasing role of computational biophysics in characterizing the mechanisms of machines on genes, focusing on innovative applications of computational methods and their integration with structural and biophysical experiments. We showcase how state-of-the-art computational methods, including classical and ab initio molecular dynamics to enhanced sampling techniques, and coarse-grained approaches are used for understanding and exploring gene machines for real-world applications. As this review unfolds, advanced computational methods describe the biophysical function that is unseen through experimental techniques, accomplishing the power of the computational microscope, an expression coined by Klaus Schulten to highlight the extraordinary capability of computer simulations. Pushing the frontiers of computational biophysics toward a pragmatic representation of large multimegadalton biomolecular complexes is instrumental in bridging the gap between experimentally obtained macroscopic observables and the molecular principles playing at the microscopic level. This understanding will help harness molecular machines for medical, pharmaceutical, and biotechnological purposes.

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