Jaeken Laurent, Vasilievich Matveev Vladimir
Laboratory of Biochemistry, Karel de Grote University College, Department of Applied Engineering, Salesianenlaan 30, B-2660, Antwerp, Belgium.
Open Biochem J. 2012;6:139-59. doi: 10.2174/1874091X01206010139. Epub 2012 Dec 11.
Observations of coherent cellular behavior cannot be integrated into widely accepted membrane (pump) theory (MT) and its steady state energetics because of the thermal noise of assumed ordinary cell water and freely soluble cytoplasmic K(+). However, Ling disproved MT and proposed an alternative based on coherence, showing that rest (R) and action (A) are two different phases of protoplasm with different energy levels. The R-state is a coherent metastable low-entropy state as water and K(+) are bound to unfolded proteins. The A-state is the higher-entropy state because water and K(+) are free. The R-to-A phase transition is regarded as a mechanism to release energy for biological work, replacing the classical concept of high-energy bonds. Subsequent inactivation during the endergonic A-to-R phase transition needs an input of metabolic energy to restore the low entropy R-state. Matveev's native aggregation hypothesis allows to integrate the energetic details of globular proteins into this view.
由于假定的普通细胞内水和自由可溶性细胞质钾离子(K(+))的热噪声,对细胞相干行为的观察结果无法整合到被广泛接受的膜(泵)理论(MT)及其稳态能量学中。然而,凌(Ling)反驳了MT,并基于相干性提出了一种替代理论,表明静息(R)和活动(A)是原生质的两个不同阶段,具有不同的能量水平。R态是一种相干的亚稳态低熵状态,因为水和K(+)与未折叠的蛋白质结合。A态是较高熵状态,因为水和K(+)是自由的。R到A的相变被视为一种为生物功释放能量的机制,取代了高能键的经典概念。在吸能的A到R相变过程中的后续失活需要代谢能量的输入来恢复低熵R态。马特维耶夫(Matveev)的天然聚集假说允许将球状蛋白质的能量细节整合到这一观点中。