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arXiv 2311.09565q-bio.BMphysics.bio-phq-bio.PE
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蛋白质机器的物理逻辑

The Physical Logic of Protein Machines

John M. McBride, Tsvi Tlusty

AI总结:

针对蛋白质机器的功能实现与序列编码逻辑的未解问题,本研究采用将蛋白质视为机械化学机器的物理方法,从结构、运动与化学相互作用协同进化的角度展开探索。

摘要:

蛋白质是复杂的分子机器,其复杂性源于氨基酸构建单元的异质性以及它们的多体相互作用动态网络。当这些纳米机器处于完整生物体的环境中时,通过与生物界中其他组分的相互作用而获得功能,且这种功能通过相互交织的选择与适应路径塑造了它们的进化历史。机器学习的最新进展解决了存在数十年的蛋白质序列如何决定其结构的问题。然而,关于蛋白质机器基本逻辑的终极问题仍悬而未决:蛋白质的集体物理特性如何产生其功能?序列又是如何编码促成功能的全部动力学范围与化学相互作用的?本文中,我们通过一种将蛋白质视为机械化学机器的物理方法探究这些问题,这类机器通过结构、运动与化学相互作用的协同进化来适配以发挥功能。

英文摘要:

Proteins are intricate molecular machines whose complexity arises from the heterogeneity of the amino acid building blocks and their dynamic network of many-body interactions. These nanomachines gain function when put in the context of a whole organism through interaction with other inhabitants of the biological realm. And this functionality shapes their evolutionary histories through intertwined paths of selection and adaptation. Recent advances in machine learning have solved the decades-old problem of how protein sequence determines their structure. However, the ultimate question regarding the basic logic of protein machines remains open: How does the collective physics of proteins lead to their functionality? and how does a sequence encode the full range of dynamics and chemical interactions that facilitate function? Here, we explore these questions within a physical approach that treats proteins as mechano-chemical machines, which are adapted to function via concerted evolution of structure, motion, and chemical interactions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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