Sampling in in silico biomolecular studies: single-stage experiments vs multiscale approaches

Nevena Ilieva*, Jiaojiao Liu, Xubiao Peng, Jianfeng He, Antti Niemi, Peicho Petkov, Leandar Litov

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In silico studies of biological molecules face the problem of sampling quality due to the systems size (in atom numbers), the time scale of the investigated processes and the admissible computational time step. Advances in hardware alone are incapable of resolving this problem and the efforts are oriented towards sampling techniques enhancements, multilevel system representations and development of multistage and multiscale methods through synergistic protocols from complementary approaches. We combine a mean field approach with all atom molecular dynamics (MD), to develop a multistage algorithm that can model protein folding and dynamics over very long time periods with atomic-level precision. We compare the quality of conformation-space sampling for villin headpiece (PDB ID 2F4K) with a 125 μ s long folding simulation performed on the dedicated supercomputer ANTON.

Original languageEnglish
Title of host publicationLarge-Scale Scientific Computing - 11th International Conference, LSSC 2017, Revised Selected Papers
EditorsIvan Lirkov, Svetozar Margenov
PublisherSpringer Verlag
Pages507-515
Number of pages9
ISBN (Print)9783319734408
DOIs
Publication statusPublished - 2018
Event11th International Conference on Large-Scale Scientific Computations, LSSC 2017 - Sozopol, Bulgaria
Duration: 11 Sept 201715 Sept 2017

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10665 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference11th International Conference on Large-Scale Scientific Computations, LSSC 2017
Country/TerritoryBulgaria
CitySozopol
Period11/09/1715/09/17

Keywords

  • Biological molecules
  • Mean field theory
  • Molecular dynamics
  • Molecular modeling
  • Numerical simulations
  • Protein folding

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