Implicit solvent models fail to reproduce secondary structures of de novo designed peptides

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Abstract

We test a range of standard implicit solvent models and protein forcefields for a set of 5 experimentally characterized, designed α-helical peptides. 65 combinations of forcefield and implicit solvent models are evaluated in >800 µs of molecular dynamics simulations. The data show that implicit solvent models generally fail to reproduce the experimentally observed secondary structure content, and none performs well for all 5 peptides. The results show that these models are not usefully predictive.
Original languageEnglish
PublisherChemRxiv
Number of pages16
DOIs
Publication statusE-pub ahead of print - 15 Nov 2021

Publication series

NameChemRxiv

Keywords

  • computational protein design
  • de novo peptides
  • generalized Born
  • implicit solvent
  • molecular dynamics simulation

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