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arXiv 1607.07196q-bio.SCcond-mat.softphysics.bio-phq-bio.BM
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外载荷作用下ds-mRNA上核糖体动力学模型

Modeling of Ribosome Dynamics on a ds-mRNA under an External Load

Bahareh Shakiba, Maryam Dayeri, Farshid Mohammad-Rafiee

摘要:

细胞中的蛋白质分子是由称为核糖体的大分子机器合成的。根据最近的实验数据,我们降低了核糖体的复杂性,并提出了一个模型来表达其活动的六个主要状态。使用我们的模型,我们研究了在不同的生物相关的情况下,在外力的存在下,翻译速率,并通过RNA双链区在没有或存在外力的翻译。在本研究中,我们给出了翻译速率的定量理论,并表明核糖体的行为更像一个布朗棘轮马达。我们的研究结果可能有助于理解核糖体在生物条件下的行为。

英文摘要:

Protein molecules in cells are synthesized by macromolecular machines called ribosomes. According to recent experimental data, we reduce the complexity of the ribosome and propose a model to express its activity in six main states. Using our model, we study the translation rate in different biological relevant situations in the presence of external force, and translation through the RNA double stranded region in the absence or presence of the external force. In the present study, we give a quantitative theory for translation rate and show that the ribosome behaves more like a Brownian Ratchet motor. Our findings could shed some light on understanding behaviors of the ribosome in biological conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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