蛋白质链构象的分形分析。

Fractal analysis of protein chain conformation.

作者信息

Li H Q, Li Y, Zhao H M

机构信息

Department of Chemistry, Sichuan University, Chengdu, People's Republic of China.

出版信息

Int J Biol Macromol. 1990 Feb;12(1):6-8. doi: 10.1016/0141-8130(90)90074-k.

DOI:10.1016/0141-8130(90)90074-k

PMID:2083243

Abstract

This paper presents a simple practical method for characterizing conformation of protein chains. A single number Df, as the fractal dimension, is assigned to each chain. Df = Ln(N)/Ln(N.d/L), where N is the number of the amino acid residues in the chain, L and d are the total length and the planar diameter of the chain, respectively. In general, 1 less than Df less than or equal to 2, which is related to the shape of the protein chain. These values are different from those of Stapleton's group, but in agreement with computer simulations.

摘要

本文提出了一种表征蛋白质链构象的简单实用方法。为每条链赋予一个单一数值Df作为分形维数。Df = Ln(N)/Ln(N.d/L)，其中N是链中氨基酸残基的数量，L和d分别是链的总长度和平面直径。一般来说，1 < Df ≤ 2，这与蛋白质链的形状有关。这些值与斯台普顿小组的值不同，但与计算机模拟结果一致。