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Volumn 111, Issue 45, 2007, Pages 13052-13063

Accurate and efficient corrections for missing dispersion interactions in molecular simulations

Author keywords

[No Author keywords available]

Indexed keywords

DISPERSIONS; FREE ENERGY; LIGANDS; MACROMOLECULES; POTENTIAL ENERGY;

EID: 36649007647     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp0735987     Document Type: Article
Times cited : (187)

References (69)
  • 18
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    • The development/application of a 'minimalist' organic/biochemical molecular mechanic force field using a combination of ab initio calculations and experimental data
    • Wilkinson, A, Weiner, P, van Gunsteren, W. F, Eds, Elsevier: Amsterdam, The Netherlands
    • Kollman, P. A.; Dixon, R.; Cornell, W.; Fox, T.; Chipot, C.; Pohorille, A. The development/application of a 'minimalist' organic/biochemical molecular mechanic force field using a combination of ab initio calculations and experimental data. In Computer Simulation of Biomolecular Systems, Vol. 3; Wilkinson, A., Weiner, P., van Gunsteren, W. F., Eds.; Elsevier: Amsterdam, The Netherlands, 1997.
    • (1997) Computer Simulation of Biomolecular Systems , vol.3
    • Kollman, P.A.1    Dixon, R.2    Cornell, W.3    Fox, T.4    Chipot, C.5    Pohorille, A.6
  • 21
    • 84906385065 scopus 로고    scopus 로고
    • Personal communication
    • Personal communication.
  • 31
    • 84906399324 scopus 로고    scopus 로고
    • The derivation of the WHAM estimator used here, eq 21 of ref 30, is too involved to reproduce here, so we refer the reader there for a detailed exposition.
    • The derivation of the WHAM estimator used here, eq 21 of ref 30, is too involved to reproduce here, so we refer the reader there for a detailed exposition.
  • 37
    • 84906370713 scopus 로고    scopus 로고
    • Janke, W. Statistical analysis of simulations: Data correlations and error estimation. In Quantum Simulations of Complex Many-Body Systems: From Theory to Algorithms, 10; Grostendorst, J., Marx, D., Murmatsu, A., Eds.; Rolduc Conference Centre: Kerkrade, The Netherlands, 2002.
    • Janke, W. Statistical analysis of simulations: Data correlations and error estimation. In Quantum Simulations of Complex Many-Body Systems: From Theory to Algorithms, Vol. 10; Grostendorst, J., Marx, D., Murmatsu, A., Eds.; Rolduc Conference Centre: Kerkrade, The Netherlands, 2002.
  • 41
    • 84906370714 scopus 로고    scopus 로고
    • A bug fix was added to correctly compute the reciprocal space forces of mutating atoms; the effect of this on the results presented for smaller molecules in the previous study40 was orders of magnitude smaller than the uncertainty but became sigificant with the large proteins in this study
    • 40 was orders of magnitude smaller than the uncertainty but became sigificant with the large proteins in this study.
  • 57
    • 84906413741 scopus 로고    scopus 로고
    • We found that the L-BFGS minimizer in GROMACS occasionally terminates extremely early, after only a few steps, so we used additional steepest descents minimization to ensure that minimization was adequate
    • We found that the L-BFGS minimizer in GROMACS occasionally terminates extremely early, after only a few steps, so we used additional steepest descents minimization to ensure that minimization was adequate.
  • 61
    • 84906399325 scopus 로고    scopus 로고
    • The listed uncertainties are actually slightly higher for L2 than for L20 using the 0.75-0.9 and 0.9-1.0 cutoffs, but this is principally because of the smaller number of samples collected for L2 at these cutoffs.
    • The listed uncertainties are actually slightly higher for L2 than for L20 using the 0.75-0.9 and 0.9-1.0 cutoffs, but this is principally because of the smaller number of samples collected for L2 at these cutoffs.
  • 68
    • 84906370711 scopus 로고    scopus 로고
    • If different cutoffs are used to compute the free energies of the complexed ligand and solvated ligand, this cancellation of error will not fully occur, and omitting a proper treatment of the long-range correction will lead to even larger errors in the total binding free energy than exist between columns five and six of Table 3
    • If different cutoffs are used to compute the free energies of the complexed ligand and solvated ligand, this cancellation of error will not fully occur, and omitting a proper treatment of the long-range correction will lead to even larger errors in the total binding free energy than exist between columns five and six of Table 3.
  • 69
    • 84906370712 scopus 로고    scopus 로고
    • In GROMACS 3.3, the heterogeneous dispersion correction to the chemical potential was implemented and used for these calculations. As discussed in the text, this can lead to inaccuracies, and likely explains part of the larger cutoff-dependence for toluene in lysozyme than the much larger FK506. The fully buried binding site of toluene also may explain part of the larger discrepancy.
    • In GROMACS 3.3, the heterogeneous dispersion correction to the chemical potential was implemented and used for these calculations. As discussed in the text, this can lead to inaccuracies, and likely explains part of the larger cutoff-dependence for toluene in lysozyme than the much larger FK506. The fully buried binding site of toluene also may explain part of the larger discrepancy.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.