PreprintCited by 5Advanced Electron Microscopy Techniques and ApplicationsTreatment of Major DepressionEnzyme Structure and Function

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Uncovering the Elusive Structures and Mechanisms of Prevalent Antidepressants

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Lin, Jieye, Bu, Guanhong, Unge, Johan, Gonen, Tamir·2024·Advanced Therapeutics

Preprint — published as 10.1002/adtp.202400117 · Paper page

Abstract

Most treatments to alleviate major depression work by either inhibiting human monoamine transporters, vital for the reuptake of monoamine neurotransmitters, or by inhibiting monoamine oxidases, which are vital for their degradation. The analysis of the experimental 3D structures of those antidepressants in their drug formulation state is key to precision drug design and development. In this study, we apply microcrystal electron diffraction (MicroED) to reveal the atomic 3D structures for the first time of five of the most prevalent antidepressants (reboxetine, pipofezine, ansofaxine, phenelzine, bifemelane) directly from the commercially available powder of the active ingredients. Their modes of binding are investigated by molecular docking, revealing the essential contacts and conformational changes into the biologically active state. This study underscores the combined use of MicroED and molecular docking to uncover elusive drug structures and mechanisms to aid in further drug development pipelines.

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Metadata

Authors
Lin, J., Bu, G., Unge, J., & Gonen, T.
Affiliations
  • University of California, Los Angeles (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Gonen, Tamir
Venue
Advanced Therapeutics
Publisher
openRxiv
Published
2024-01-05
Volume
7
Issue
9
ISSN
2366-3987 (ISSN-L)
OpenAlex
W4401178539
Cited by
5
References
1
Citations by year
2026: 2 · 2025: 3
FWCI
0.91
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Advanced Therapeutics (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion, cc-by)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • U.S. Department of Defense (MCDC‐2202‐002, W15QKN-16-9-1002)
  • Howard Hughes Medical Institute
  • National Institutes of Health
  • National Institute of General Medical Sciences (P41GM136508)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Structural Biology › Advanced Electron Microscopy Techniques and Applications
  • Health Sciences › Medicine › Pharmacology (medical) › Treatment of Major Depression
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Structural Biology › Enzyme Structure and Function
Keywords
antidepressants, major depressive disorder, monoamine transporters, monoamine oxidase inhibition, reboxetine, phenelzine, bifemelane, microcrystal electron diffraction, molecular docking, drug binding mode

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