催化放热反应的酶的增强扩散
Enhanced Diffusion of Enzymes that Catalyze Exothermic Reactions
摘要：
最近发现酶由于其催化活性而表现出增强的扩散。最近的一个实验[C。Riedel等人，Nature 517，227（2015）]已经发现了表明这种现象可能受所涉及的催化反应的催化性程度控制的证据。四种机制，可以导致这种效果，即，自我热泳，增加动能，随机游泳，集体加热，进行了严格的讨论，它表明，只有最后两个可以是足够强大的观测。由此产生的定量描述用于检查该效应的生物学意义。
英文摘要：
Enzymes have been recently found to exhibit enhanced diffusion due to their catalytic activities. A recent experiment [C. Riedel et al., Nature 517, 227 (2015)] has found evidence that suggests this phenomenon might be controlled by the degree of exothermicity of the catalytic reaction involved. Four mechanisms that can lead to this effect, namely, self-thermophoresis, boost in kinetic energy, stochastic swimming, and collective heating, are critically discussed, and it is shown that only the last two could be strong enough to account for the observations. The resulting quantitative description is used to examine the biological significance of the effect.
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