An electrostatic spatial resonance model for coaxial helical structures with applications to the filamentous bacteriophages.
An electrostatic spatial resonance model for coaxial helical structures with applications to the filamentous bacteriophages.
复制标题
同轴螺旋结构的静电空间共振模型及其在丝状噬菌体中的应用。
DOI:
10.1016/s0006-3495(94)80706-4
复制
发表时间:
1994
影响因子:
3.4
通讯作者:
Day,LA
中科院分区:
文献类型:
--
作者:
Marzec,CJ;Day,LA
A model is presented that treats the symmetry matching problem in structures made of two interacting coaxial helices of point charges. The charges are sources of a potential field that mediates a non-specific attractive interaction between the helices. The problem is represented in Fourier space, which affords the most generality. It is found that coaxial helices with optimally mated symmetries can lock into spatial resonance configurations that maximize their interaction. The resonances are represented as vectors in a discrete three-dimensional space. Two algebraic relations are given for the four symmetry parameters of two helices in resonance. One-start inner helices interacting with coaxial one-start or NR-start outer helices are considered. Applications are made to the filamentous bacteriophages Ff, Pf1, Xf, and Pf3. The interaction given by the linearized Poisson-Boltzmann equation is calculated in this formalism to allow comparison of the electrostatic free energy of interaction of different resonance structures. Experimental nucleotide/subunit ratios are accounted for, and models for the DNA-protein interfaces are presented, with particular emphasis on Pf1.
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DOI:
10.1101/087969122.8.627
发表时间:
1978
期刊:
Cold Spring Harbor Monograph Archive
影响因子:
--
作者:
L. Makowski;D. Caspar
通讯作者:
D. Caspar
影响因子:
5.6
作者:
E. Wachtel;R. Wiseman;W. Pigram;D. Marvin
通讯作者:
D. Marvin
影响因子:
5.6
作者:
D. Marvin;R. Wiseman;E. Wachtel
通讯作者:
E. Wachtel
影响因子:
2.9
作者:
Casadevall,A;Day,LA
通讯作者:
Day,LA
DOI:
10.1107/s0365110x58000517
发表时间:
1958-01-01
期刊:
ACTA CRYSTALLOGRAPHICA
影响因子:
--
作者:
KLUG, A;CRICK, FHC;WYCKOFF, HW
通讯作者:
WYCKOFF, HW