Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilov St., 119991 Moscow, Russia.
Cells. 2023 Feb 24;12(5):724. doi: 10.3390/cells12050724.
We assume that the enzymatic processes of recognition of amino acids and their addition to the synthesized molecule in cellular translation include the formation of intermediate pairs of radicals with spin-correlated electrons. The mathematical model presented describes the changes in the probability of incorrectly synthesized molecules in response to a change in the external weak magnetic field. A relatively high chance of errors has been shown to arise from the statistical enhancement of the low probability of local incorporation errors. This statistical mechanism does not require a long thermal relaxation time of electron spins of about 1 μs-a conjecture often used to match theoretical models of magnetoreception with experiments. The statistical mechanism allows for experimental verification by testing the usual Radical Pair Mechanism properties. In addition, this mechanism localizes the site where magnetic effects originate, the ribosome, which makes it possible to verify it by biochemical methods. This mechanism predicts a random nature of the nonspecific effects caused by weak and hypomagnetic fields and agrees with the diversity of biological responses to a weak magnetic field.
我们假设细胞翻译中识别氨基酸及其添加到合成分子的酶促过程包括形成具有自旋相关电子的中间自由基对。本文提出的数学模型描述了对外界弱磁场变化时不正确合成分子的概率变化。已经表明,由于局部掺入错误的低概率的统计增强,错误的机会相对较高。这种统计机制不需要电子自旋约 1 μs 的长热弛豫时间——这一假设常用于将磁受体的理论模型与实验相匹配。统计机制允许通过测试通常的自由基对机制特性来进行实验验证。此外,该机制将磁效应起源的部位——核糖体定位,这使得通过生化方法对其进行验证成为可能。该机制预测了弱磁场和低磁场引起的非特异性效应的随机性质,并且与生物对弱磁场的多种反应一致。