Twist in chiral interaction between biological helices

被引：38

作者：

Kornyshev, AA

Leikin, S

机构：

[1] NICHHD, Lab Phys & Struct Biol, NIH, Bethesda, MD 20892 USA

[2] Res Ctr, D-52425 Julich, Germany

[3] Univ Calif Santa Barbara, Inst Theoret Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.84.2537

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using an exact solution for the pair interaction potential, we show that long, rigid, chiral molecules with helical surface charge patterns have a preferential interaxial angle similar to root RH/L, where L is the length of the molecules, R is the closest distance between their axes, and H is the helical pitch. Estimates based on this formula suggest a solution for the puzzle of small interaxial angles in alpha-helix bundles and in cholesteric phases of DNA.

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页码：2537 / 2540

页数：4

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