Thermal denaturation of a coronavirus envelope (CoVE) protein by a coarse-grained Monte Carlo simulation

IF 1.1 Q4 BIOPHYSICS AIMS Biophysics Pub Date : 2022-01-01 DOI:10.3934/biophy.2022027
Panisak Boonamnaj, P. Sompornpisut, P. Nimmanpipug, R. B. Pandey
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Abstract

Thermal response of an envelope protein conformation from coronavirus-2 (CoVE) is studied by a coarse-grained Monte Carlo simulation. Three distinct segments, the N-terminal, Trans-membrane, and C-terminal are verified from its specific contact profile. The radius of gyration (Rg) reveals a non-monotonic sub-universal thermal response: Rg decays substantially on heating in native phase under low-temperature regime in contrast to a continuous increase on further raising the temperature prior to its saturation to a random-coil in denature phase. The globularity index which is a measure of effective dimension of the protein, decreases as the protein denatures from a globular to a random-coil conformation.
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冠状病毒包膜(CoVE)蛋白热变性的粗粒度蒙特卡罗模拟
通过粗粒度蒙特卡罗模拟研究了冠状病毒-2 (CoVE)包膜蛋白构象的热响应。三个不同的片段,n端,跨膜和c端从其特定的接触剖面验证。旋转半径(Rg)揭示了一个非单调的亚普适性热响应:在低温状态下,Rg在自然相加热时大幅衰减,而在变性相饱和到随机线圈之前,Rg在进一步升高温度时连续增加。球形指数是衡量蛋白质有效尺寸的指标,当蛋白质从球形构象变性为随机线圈构象时,球形指数降低。
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来源期刊
AIMS Biophysics
AIMS Biophysics BIOPHYSICS-
CiteScore
2.40
自引率
20.00%
发文量
16
审稿时长
8 weeks
期刊介绍: AIMS Biophysics is an international Open Access journal devoted to publishing peer-reviewed, high quality, original papers in the field of biophysics. We publish the following article types: original research articles, reviews, editorials, letters, and conference reports. AIMS Biophysics welcomes, but not limited to, the papers from the following topics: · Structural biology · Biophysical technology · Bioenergetics · Membrane biophysics · Cellular Biophysics · Electrophysiology · Neuro-Biophysics · Biomechanics · Systems biology
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