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通过热滞蛋白实现过冷流体的稳定化。

Stabilization of supercooled fluids by thermal hysteresis proteins.

作者信息

Wilson P W, Leader J P

机构信息

Physiology Department, Medical School, University of Otago, Dunedin, New Zealand.

出版信息

Biophys J. 1995 May;68(5):2098-107. doi: 10.1016/S0006-3495(95)80389-9.

Abstract

It has been reported that thermal hysteresis proteins found in many cold-hardy, freeze-avoiding arthropods stabilize their supercooled body fluids. We give evidence that fish antifreeze proteins, which also produce thermal hysteresis, bind to and reduce the efficiency of heterogenous nucleation sites, rather than binding to embryonic ice nuclei. We discuss both possible mechanisms for stabilization of supercooled body fluids and also describe a new method for measuring and defining the supercooling point of small volumes of liquid.

摘要

据报道,在许多耐寒、避免结冰的节肢动物中发现的热滞蛋白可稳定其过冷的体液。我们提供的证据表明,同样会产生热滞的鱼类抗冻蛋白会结合并降低异质成核位点的效率,而不是结合到胚胎冰核上。我们讨论了过冷体液稳定化的两种可能机制,并描述了一种测量和定义少量液体过冷点的新方法。

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