Devkin V I, Mikhaĭlov A I
Biofizika. 1978 Sep-Oct;23(5):775-83.
Using kinetic data on recombination macroradicals in freezed water solutions of lyzozyme, superslow molecular motions of biopolymer have been studied. Recombination of macroradicals is observed at 160--240 K and it has a stepwise character. The kinetic data are described quantitatively by the model, in which the set of processes with different rate constants is considered (the so-called model of polychromatic kinetics). It has been shown that polychromatic character of the process is conditioned by energy activation distribution, which is changed from Emin = 8+/-1 kcal/mol to Emax = 13 +/- 1 kcal/mol with "rectangular" distribution function f(E) approximately equal to: formula: (see text). Preexponential factor K0 = 2 . 10 (-9)cm3.s-1. The recombination-kinetic method used permits to estimate frequencies (inverse correlation time) translation mobility macroradicals of protein up to the frequency order 10(-2)s-1 (or velocities of motions approximately 1 A/s).
利用溶菌酶冷冻水溶液中复合大自由基的动力学数据，研究了生物聚合物的超慢分子运动。在160 - 240K观察到大自由基的复合，且具有分步特征。动力学数据由该模型定量描述，其中考虑了具有不同速率常数的一组过程（所谓的多色动力学模型）。结果表明，该过程的多色特征由能量活化分布决定，其从Emin = 8±1千卡/摩尔变化到Emax = 13±1千卡/摩尔，“矩形”分布函数f(E)近似等于：公式：（见原文）。预指数因子K0 = 2·10^(-9)立方厘米·秒^(-1)。所使用的复合动力学方法能够估计蛋白质大自由基平移迁移率的频率（反相关时间），直至频率量级为10^(-2)秒^(-1)（或运动速度约为1埃/秒）。
