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arXiv 0912.1969cond-mat.softcond-mat.stat-mech
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细胞环境中生物聚合物的力诱导解折叠:模型研究

Force induced unfolding of bio-polymers in a cellular environment: A model study

Amit Raj Singh, Debaprasad Giri, Sanjay Kumar

摘要:

通过模拟线性高分子链在渗流团簇上的运动,研究了蛋白质在细胞内展开过程中所经历的分子拥挤和限制效应。已知细胞的内部结构随时间变化,然而,它们不会从其初始结构显著变化。为了模拟这一点,我们引入了不同的无序实现之间的相关性。结果表明,在恒定力系综(CFE)和恒定距离系综(CDE)的相关无序的力扩展行为是显着不同的比在没有分子拥挤的情况下获得的。

英文摘要:

Effect of molecular crowding and confinement experienced by protein in the cell during unfolding has been studied by modeling a linear polymer chain on a percolation cluster. It is known that internal structure of the cell changes in time, however, they do not change significantly from their initial structure. In order to model this we introduce the correlation among the different disorder realizations. It was shown that the force-extension behavior for correlated disorder in both constant force ensemble (CFE) and constant distance ensemble (CDE) is significantly different than the one obtained in absence of molecular crowding.

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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