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Sigmoid Accelerated Molecular Dynamics : An Efficient Enhanced Sampling Method for Biosystems

Zhao, Yihao (författare)
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China, Zhejiang
Zhang, Jintu (författare)
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China, Zhejiang; CarbonSilicon AI Technology Company, Ltd., Hangzhou 310018, Zhejiang, China, Zhejiang
Zhang, Haotian (författare)
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China, Zhejiang; CarbonSilicon AI Technology Company, Ltd., Hangzhou 310018, Zhejiang, China, Zhejiang
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Gu, Shukai (författare)
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China, Zhejiang
Deng, Yafeng (författare)
CarbonSilicon AI Technology Company, Ltd., Hangzhou 310018, Zhejiang, China, Zhejiang
Tu, Yaoquan (författare)
KTH,Teoretisk kemi och biologi
Hou, Tingjun (författare)
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China, Zhejiang
Kang, Yu (författare)
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China, Zhejiang
visa färre...
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China, Zhejiang College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China, Zhejiang; CarbonSilicon AI Technology Company, Ltd, Hangzhou 310018, Zhejiang, China, Zhejiang (creator_code:org_t)
2023-01-26
2023
Engelska.
Ingår i: Journal of Physical Chemistry Letters. - : American Chemical Society (ACS). - 1948-7185 .- 1948-7185. ; 14:4, s. 1103-1112
  • Tidskriftsartikel (refereegranskat)
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  • Gaussian accelerated molecular dynamics (GaMD) is recognized as a popular enhanced sampling method for tackling long-standing challenges in biomolecular simulations. Inspired by GaMD, Sigmoid accelerated molecular dynamics (SaMD) is proposed in this work by adding a Sigmoid boost potential to improve the balance between the highest acceleration and accurate reweighting. Compared with GaMD, SaMD extends the accessible time scale and improves the computational efficiency as tested in three tasks. In the alanine dipeptide task, SaMD can produce the free energy landscape with better accuracy and efficiency. In the chignolin folding task, the estimated Gibbs free energy difference can converge to the experimental value ∼30% faster. In the protein-ligand binding task, the bound conformations are closer to the crystal structure with a minimal ligand root-mean-square deviation of 1.7 Å. The binding of the ligand XK263 to the HIV protease is reproduced by SaMD in ∼60% less simulation time.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)

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