全原子力场中三螺旋蛋白质的计算机折叠及其自由能谱的表征
In-silico folding of a three helix protein and characterization of its free-energy landscape in an all-atom forcefield
摘要：
我们报告的可重复的第一性原则折叠的40个氨基酸，三个螺旋头部分的艾滋病毒辅助蛋白在最近开发的全原子自由能力场。使用适应盆跳跃方法的二十个模拟中的六个收敛到优于3 μ m的骨干RMS偏差到实验结构。使用这种蛋白质的60，000多种低能构象，我们构建了一个诱饵树，完全表征了它的折叠漏斗。
英文摘要：
We report the reproducible first-principles folding of the 40 amino acid, three-helix headpiece of the HIV accessory protein in a recently developed all-atom free-energy forcefield. Six of twenty simulations using an adapted basin-hopping method converged to better than 3 Åbackbone RMS deviation to the experimental structure. Using over 60,000 low-energy conformations of this protein, we constructed a decoy tree that completely characterizes its folding funnel.
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