Arbitrary Resolution with Two Bead Types Coarse-Grained Strategy and Applications to Protein Recognition
Molecular recognition is a fundamental step in essentially any biological process. However, the kinetic processes during association and dissociation are difficult to be efficiently sampled by direct all-atom molecular dynamics simulations because of the large spatial and temporal scales. Here we pr...
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Published in | The journal of physical chemistry letters Vol. 11; no. 9; pp. 3263 - 3270 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
07.05.2020
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Abstract | Molecular recognition is a fundamental step in essentially any biological process. However, the kinetic processes during association and dissociation are difficult to be efficiently sampled by direct all-atom molecular dynamics simulations because of the large spatial and temporal scales. Here we propose an arbitrary resolution with two bead types (ART) coarse-grained (CG) strategy that is adept in molecular recognition. ART is a universal user-customized CG strategy that can generate a system-specific CG force field anytime and be applied to any system with an arbitrary CG resolution according to research requirements. ART CG simulations can be very efficiently performed with implicit solvation in prevalent simulation packages and provide interfaces for any enhanced sampling method. We used three applications, HLA–HIV epitope recognition, barnase–barstar association, and trimeric TRAF2 self-assembly, to validate the feasibility of the ART CG strategy, its advantages in protein recognition, and its high performance in simulations. Regular CG simulations can successfully achieve valid protein recognitions without any prior bound structure. |
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AbstractList | Molecular recognition is a fundamental step in essentially any biological process. However, the kinetic processes during association and dissociation are difficult to be efficiently sampled by direct all-atom molecular dynamics simulations because of the large spatial and temporal scales. Here we propose an arbitrary resolution with two bead types (ART) coarse-grained (CG) strategy that is adept in molecular recognition. ART is a universal user-customized CG strategy that can generate a system-specific CG force field anytime and be applied to any system with an arbitrary CG resolution according to research requirements. ART CG simulations can be very efficiently performed with implicit solvation in prevalent simulation packages and provide interfaces for any enhanced sampling method. We used three applications, HLA-HIV epitope recognition, barnase-barstar association, and trimeric TRAF2 self-assembly, to validate the feasibility of the ART CG strategy, its advantages in protein recognition, and its high performance in simulations. Regular CG simulations can successfully achieve valid protein recognitions without any prior bound structure. |
Author | Zhong, Qinglu Li, Guohui |
AuthorAffiliation | Laboratory of Molecular Modeling and Design, State Key Laboratory of Molecular Reaction Dynamics University of Chinese Academy of Sciences |
AuthorAffiliation_xml | – name: University of Chinese Academy of Sciences – name: Laboratory of Molecular Modeling and Design, State Key Laboratory of Molecular Reaction Dynamics |
Author_xml | – sequence: 1 givenname: Qinglu orcidid: 0000-0002-5593-1641 surname: Zhong fullname: Zhong, Qinglu organization: University of Chinese Academy of Sciences – sequence: 2 givenname: Guohui orcidid: 0000-0001-8223-705X surname: Li fullname: Li, Guohui email: ghli@dicp.ac.cn organization: Laboratory of Molecular Modeling and Design, State Key Laboratory of Molecular Reaction Dynamics |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/32251595$$D View this record in MEDLINE/PubMed |
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Title | Arbitrary Resolution with Two Bead Types Coarse-Grained Strategy and Applications to Protein Recognition |
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