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@ARTICLE{Schmitz:1025644,
author = {Schmitz, Birte and Frieg, Benedikt and Homeyer, Nadine and
Jessen, Gisela and Gohlke, Holger},
title = {{E}xtracting binding energies and binding modes from
biomolecular simulations of fragment binding to
endothiapepsin},
journal = {Archiv der Pharmazie},
volume = {357},
number = {5},
issn = {0342-9385},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2024-03033},
pages = {e2300612},
year = {2024},
abstract = {Fragment-based drug discovery (FBDD) aims to discover a set
of small binding fragments that may be subsequently linked
together. Therefore, in-depth knowledge of the individual
fragments' structural and energetic binding properties is
essential. In addition to experimental techniques, the
direct simulation of fragment binding by molecular dynamics
(MD) simulations became popular to characterize fragment
binding. However, former studies showed that long simulation
times and high computational demands per fragment are
needed, which limits applicability in FBDD. Here, we
performed short, unbiased MD simulations of direct fragment
binding to endothiapepsin, a well-characterized model system
of pepsin-like aspartic proteases. To evaluate the strengths
and limitations of short MD simulations for the structural
and energetic characterization of fragment binding, we
predicted the fragments' absolute free energies and binding
poses based on the direct simulations of fragment binding
and compared the predictions to experimental data. The
predicted absolute free energies are in fair agreement with
the experiment. Combining the MD data with binding mode
predictions from molecular docking approaches helped to
correctly identify the most promising fragments for further
chemical optimization. Importantly, all computations and
predictions were done within 5 days, suggesting that MD
simulations may become a viable tool in FBDD projects.},
cin = {IBG-4 / JSC / NIC / IBI-7},
ddc = {610},
cid = {I:(DE-Juel1)IBG-4-20200403 / I:(DE-Juel1)JSC-20090406 /
I:(DE-Juel1)NIC-20090406 / I:(DE-Juel1)IBI-7-20200312},
pnm = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
(SDLs) and Research Groups (POF4-511) / 2171 - Biological
and environmental resources for sustainable use (POF4-217) /
GRK 2158 - GRK 2158: Naturstoffe und Analoga gegen
Therapie-resistente Tumoren und Mikroorganismen: Neue
Leitstrukturen und Wirkmechanismen (270650915)},
pid = {G:(DE-HGF)POF4-5111 / G:(DE-HGF)POF4-2171 /
G:(GEPRIS)270650915},
typ = {PUB:(DE-HGF)16},
pubmed = {38319801},
UT = {WOS:001158265900001},
doi = {10.1002/ardp.202300612},
url = {https://juser.fz-juelich.de/record/1025644},
}