A Fractal Model of Protein Conformations and Spectral Exponents for the Densities of Low-Frequency Normal Modes of Vibration

Hiroshi Wako

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Spectral exponents m defined in the power law relationship [formula omitted] between the density of vibrational states p(v) and the frequency v at very low frequencies are calculated by means of the normal mode analysis of molecular mechanics for nine globular proteins. For the sake of comparison, fractal dimensions d are also estimated from the backbone conformations of the same set of proteins. The results show that m and d range from 1.53 to 1.77 and from 1.49 to 1.85, respectively, and well agree with the fractal model of protein conformations proposed by Stapleton et al. (Phys. Rev. Lett. 45 (1980) 1456), in which it is asserted that m is equal to d and d is close to the theoretical value 5/3 associated with a self-avoiding random walk.

本文言語English
ページ(範囲)1926-1929
ページ数4
ジャーナルjournal of the physical society of japan
58
6
DOI
出版ステータスPublished - 1989 1 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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