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arXiv 1109.6065physics.bio-phq-bio.OT
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α ^4相互作用引起的构象变化和蛋白质折叠

Conformation changes and protein folding induced by ϕ^4 interaction

M. Januar, A. Sulaiman, L. T. Handoko

摘要:

提出了一个基于物质相互作用的蛋白质构象动力学模型,该模型采用拉格朗日方法并施加一定的对称破缺。蛋白质的构象变化和注入的非线性源都可以用玻色子拉格朗日量表示,并为源增加了一个额外的相互作用。在该模型中,蛋白质内部氢键的弹簧张力被实现为单个氨基酸与非线性源之间的相互作用。折叠途径由通过蛋白质骨架传播的非线性源的强度决定。它还表明,该模型再现了在以前的一些作品的结果。

英文摘要:

A model to describe the mechanism of conformational dynamics in protein based on matter interactions using lagrangian approach and imposing certain symmetry breaking is proposed. Both conformation changes of proteins and the injected non-linear sources are represented by the bosonic lagrangian with an additional ϕ^4 interaction for the sources. In the model the spring tension of protein representing the internal hydrogen bonds is realized as the interactions between individual amino acids and nonlinear sources. The folding pathway is determined by the strength of nonlinear sources that propagate through the protein backbone. It is also shown that the model reproduces the results in some previous works.

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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